69164638 has 16 divisors (see below), whose sum is σ = 106086960. Its totient is φ = 33808896.

The previous prime is 69164633. The next prime is 69164677. The reversal of 69164638 is 83646196.

It is a junction number, because it is equal to n+sod(n) for n = 69164594 and 69164603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69164633) 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, 21256 + ... + 24292.

It is an arithmetic number, because the mean of its divisors is an integer number (6630435).

Almost surely, 2^69164638 is an apocalyptic number.

69164638 is a deficient number, since it is larger than the sum of its proper divisors (36922322).

69164638 is a wasteful number, since it uses less digits than its factorization.

69164638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291.

The product of its digits is 186624, while the sum is 43.

The square root of 69164638 is about 8316.5280015160. The cubic root of 69164638 is about 410.4825529904.

The spelling of 69164638 in words is "sixty-nine million, one hundred sixty-four thousand, six hundred thirty-eight".