100239387 has 16 divisors (see below), whose sum is σ = 136289280. Its totient is φ = 65520000.

The previous prime is 100239367. The next prime is 100239397. The reversal of 100239387 is 783932001.

It is not a de Polignac number, because 100239387 - 2⁸ = 100239131 is a prime.

It is a super-2 number, since 2×100239387² = 20095869412271538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100239367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34387 + ... + 37187.

It is an arithmetic number, because the mean of its divisors is an integer number (8518080).

Almost surely, 2^100239387 is an apocalyptic number.

100239387 is a deficient number, since it is larger than the sum of its proper divisors (36049893).

100239387 is a wasteful number, since it uses less digits than its factorization.

100239387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3034.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 100239387 is about 10011.9621952942. The cubic root of 100239387 is about 464.5289668829.

The spelling of 100239387 in words is "one hundred million, two hundred thirty-nine thousand, three hundred eighty-seven".