103791972 has 12 divisors (see below), whose sum is σ = 242181296. Its totient is φ = 34597320.

The previous prime is 103791971. The next prime is 103791973. The reversal of 103791972 is 279197301.

It is an interprime number because it is at equal distance from previous prime (103791971) and next prime (103791973).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 103791972.

It is not an unprimeable number, because it can be changed into a prime (103791971) 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, 4324654 + ... + 4324677.

Almost surely, 2^103791972 is an apocalyptic number.

103791972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103791972 is an abundant number, since it is smaller than the sum of its proper divisors (138389324).

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

103791972 is a wasteful number, since it uses less digits than its factorization.

103791972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8649338 (or 8649336 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 103791972 is about 10187.8345098456. The cubic root of 103791972 is about 469.9531747526.

The spelling of 103791972 in words is "one hundred three million, seven hundred ninety-one thousand, nine hundred seventy-two".