83910172 has 6 divisors (see below), whose sum is σ = 146842808. Its totient is φ = 41955084.

The previous prime is 83910133. The next prime is 83910193. The reversal of 83910172 is 27101938.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10488768 + ... + 10488775.

Almost surely, 2^83910172 is an apocalyptic number.

It is an amenable number.

83910172 is a deficient number, since it is larger than the sum of its proper divisors (62932636).

83910172 is a wasteful number, since it uses less digits than its factorization.

83910172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20977547 (or 20977545 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 83910172 is about 9160.2495599192. The cubic root of 83910172 is about 437.7957458295.

It can be divided in two parts, 839 and 10172, that added together give a palindrome (11011).

The spelling of 83910172 in words is "eighty-three million, nine hundred ten thousand, one hundred seventy-two".