69957628 has 48 divisors (see below), whose sum is σ = 142390080. Its totient is φ = 29804544.

The previous prime is 69957623. The next prime is 69957653. The reversal of 69957628 is 82675996.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69957623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33676 + ... + 35692.

It is an arithmetic number, because the mean of its divisors is an integer number (2966460).

Almost surely, 2^69957628 is an apocalyptic number.

It is an amenable number.

69957628 is an abundant number, since it is smaller than the sum of its proper divisors (72432452).

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

69957628 is a wasteful number, since it uses less digits than its factorization.

69957628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086 (or 2084 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 69957628 is about 8364.0676706971. The cubic root of 69957628 is about 412.0453574345.

The spelling of 69957628 in words is "sixty-nine million, nine hundred fifty-seven thousand, six hundred twenty-eight".