239800497 has 4 divisors (see below), whose sum is σ = 319734000. Its totient is φ = 159866996.

The previous prime is 239800489. The next prime is 239800541. The reversal of 239800497 is 794008932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 239800497 - 2³ = 239800489 is a prime.

It is a super-2 number, since 2×239800497² = 115008556722894018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (239800427) 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, 39966747 + ... + 39966752.

It is an arithmetic number, because the mean of its divisors is an integer number (79933500).

Almost surely, 2^239800497 is an apocalyptic number.

It is an amenable number.

239800497 is a deficient number, since it is larger than the sum of its proper divisors (79933503).

239800497 is an equidigital number, since it uses as much as digits as its factorization.

239800497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79933502.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 239800497 is about 15485.4931145250. The cubic root of 239800497 is about 621.2742583982.

The spelling of 239800497 in words is "two hundred thirty-nine million, eight hundred thousand, four hundred ninety-seven".