103638992 has 20 divisors (see below), whose sum is σ = 201371040. Its totient is φ = 51672288.

The previous prime is 103638991. The next prime is 103639007. The reversal of 103638992 is 299836301.

It is a super-3 number, since 3×103638992³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103638991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3278 + ... + 14765.

It is an arithmetic number, because the mean of its divisors is an integer number (10068552).

Almost surely, 2^103638992 is an apocalyptic number.

It is an amenable number.

103638992 is a deficient number, since it is larger than the sum of its proper divisors (97732048).

103638992 is a wasteful number, since it uses less digits than its factorization.

103638992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18410 (or 18404 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 103638992 is about 10180.3237669536. The cubic root of 103638992 is about 469.7221717000.

The spelling of 103638992 in words is "one hundred three million, six hundred thirty-eight thousand, nine hundred ninety-two".