108772638 has 32 divisors (see below), whose sum is σ = 238130592. Its totient is φ = 32918400.

The previous prime is 108772627. The next prime is 108772667. The reversal of 108772638 is 836277801.

It is a self number, because there is not a number n which added to its sum of digits gives 108772638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6673 + ... + 16188.

It is an arithmetic number, because the mean of its divisors is an integer number (7441581).

Almost surely, 2^108772638 is an apocalyptic number.

108772638 is an abundant number, since it is smaller than the sum of its proper divisors (129357954).

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

108772638 is a wasteful number, since it uses less digits than its factorization.

108772638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22940.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 108772638 is about 10429.4121598487. The cubic root of 108772638 is about 477.3532537010.

The spelling of 108772638 in words is "one hundred eight million, seven hundred seventy-two thousand, six hundred thirty-eight".