207928231 has 8 divisors (see below), whose sum is σ = 245826720. Its totient is φ = 172078368.

The previous prime is 207928223. The next prime is 207928243. The reversal of 207928231 is 132829702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 207928231 - 2³ = 207928223 is a prime.

It is a super-2 number, since 2×207928231² = 86468298493578722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207929231) 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, 511936 + ... + 512341.

It is an arithmetic number, because the mean of its divisors is an integer number (30728340).

Almost surely, 2^207928231 is an apocalyptic number.

207928231 is a deficient number, since it is larger than the sum of its proper divisors (37898489).

207928231 is a wasteful number, since it uses less digits than its factorization.

207928231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024313.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 207928231 is about 14419.7167447908. The cubic root of 207928231 is about 592.4310598870.

The spelling of 207928231 in words is "two hundred seven million, nine hundred twenty-eight thousand, two hundred thirty-one".