69638072 has 16 divisors (see below), whose sum is σ = 149224560. Its totient is φ = 29844864.

The previous prime is 69638053. The next prime is 69638081. The reversal of 69638072 is 27083696.

It is a super-2 number, since 2×69638072² = 9698922143754368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 621713 + ... + 621824.

It is an arithmetic number, because the mean of its divisors is an integer number (9326535).

Almost surely, 2^69638072 is an apocalyptic number.

It is an amenable number.

69638072 is an abundant number, since it is smaller than the sum of its proper divisors (79586488).

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

69638072 is a wasteful number, since it uses less digits than its factorization.

69638072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243550 (or 1243546 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 69638072 is about 8344.9428997447. The cubic root of 69638072 is about 411.4170125078.

The spelling of 69638072 in words is "sixty-nine million, six hundred thirty-eight thousand, seventy-two".