69827490 has 24 divisors (see below), whose sum is σ = 181551708. Its totient is φ = 18620640.

The previous prime is 69827479. The next prime is 69827491. The reversal of 69827490 is 9472896.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69605649 + 221841 = 8343^2 + 471^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (69827491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 387841 + ... + 388020.

Almost surely, 2^69827490 is an apocalyptic number.

69827490 is an abundant number, since it is smaller than the sum of its proper divisors (111724218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69827490 is a wasteful number, since it uses less digits than its factorization.

69827490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775874 (or 775871 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 69827490 is about 8356.2844614099. The cubic root of 69827490 is about 411.7896977108.

The spelling of 69827490 in words is "sixty-nine million, eight hundred twenty-seven thousand, four hundred ninety".