69668828 has 6 divisors (see below), whose sum is σ = 121920456. Its totient is φ = 34834412.

The previous prime is 69668803. The next prime is 69668843. The reversal of 69668828 is 82886696.

It is a self number, because there is not a number n which added to its sum of digits gives 69668828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8708600 + ... + 8708607.

It is an arithmetic number, because the mean of its divisors is an integer number (20320076).

Almost surely, 2^69668828 is an apocalyptic number.

It is an amenable number.

69668828 is a deficient number, since it is larger than the sum of its proper divisors (52251628).

69668828 is a wasteful number, since it uses less digits than its factorization.

69668828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17417211 (or 17417209 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 53.

The square root of 69668828 is about 8346.7854890371. The cubic root of 69668828 is about 411.4775717148.

The spelling of 69668828 in words is "sixty-nine million, six hundred sixty-eight thousand, eight hundred twenty-eight".