69244785 has 12 divisors (see below), whose sum is σ = 120024372. Its totient is φ = 36930528.

The previous prime is 69244781. The next prime is 69244801. The reversal of 69244785 is 58744296.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29289744 + 39955041 = 5412^2 + 6321^2 .

It is not a de Polignac number, because 69244785 - 2² = 69244781 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1538773 = 69244785 / (6 + 9 + 2 + 4 + 4 + 7 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 69244785.

It is not an unprimeable number, because it can be changed into a prime (69244781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 769342 + ... + 769431.

It is an arithmetic number, because the mean of its divisors is an integer number (10002031).

Almost surely, 2^69244785 is an apocalyptic number.

It is an amenable number.

69244785 is a deficient number, since it is larger than the sum of its proper divisors (50779587).

69244785 is a wasteful number, since it uses less digits than its factorization.

69244785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538784 (or 1538781 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 69244785 is about 8321.3451436652. The cubic root of 69244785 is about 410.6410455703.

The spelling of 69244785 in words is "sixty-nine million, two hundred forty-four thousand, seven hundred eighty-five".