69044989 has 8 divisors (see below), whose sum is σ = 74831960. Its totient is φ = 63326016.

The previous prime is 69044977. The next prime is 69045059. The reversal of 69044989 is 98944096.

It can be written as a sum of positive squares in 4 ways, for example, as 2948089 + 66096900 = 1717^2 + 8130^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 69044989 - 2⁵ = 69044957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69044909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14874 + ... + 18955.

It is an arithmetic number, because the mean of its divisors is an integer number (9353995).

Almost surely, 2^69044989 is an apocalyptic number.

It is an amenable number.

69044989 is a deficient number, since it is larger than the sum of its proper divisors (5786971).

69044989 is a wasteful number, since it uses less digits than its factorization.

69044989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33999.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 69044989 is about 8309.3314412172. The cubic root of 69044989 is about 410.2457162841.

The spelling of 69044989 in words is "sixty-nine million, forty-four thousand, nine hundred eighty-nine".