108638516 has 24 divisors (see below), whose sum is σ = 218238720. Its totient is φ = 46353312.

The previous prime is 108638513. The next prime is 108638521. The reversal of 108638516 is 615836801.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 108638516.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108638513) 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, 2060 + ... + 14883.

It is an arithmetic number, because the mean of its divisors is an integer number (9093280).

Almost surely, 2^108638516 is an apocalyptic number.

It is an amenable number.

108638516 is an abundant number, since it is smaller than the sum of its proper divisors (109600204).

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

108638516 is a wasteful number, since it uses less digits than its factorization.

108638516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17183 (or 17181 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 108638516 is about 10422.9801880268. The cubic root of 108638516 is about 477.1569730094.

The spelling of 108638516 in words is "one hundred eight million, six hundred thirty-eight thousand, five hundred sixteen".