239621965 has 8 divisors (see below), whose sum is σ = 313687008. Its totient is φ = 174270480.

The previous prime is 239621887. The next prime is 239622001. The reversal of 239621965 is 569126932.

239621965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 239621965 - 2²⁷ = 105404237 is a prime.

It is a super-2 number, since 2×239621965² = 114837372220922450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2178327 + ... + 2178436.

It is an arithmetic number, because the mean of its divisors is an integer number (39210876).

Almost surely, 2^239621965 is an apocalyptic number.

It is an amenable number.

239621965 is a deficient number, since it is larger than the sum of its proper divisors (74065043).

239621965 is a wasteful number, since it uses less digits than its factorization.

239621965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356779.

The product of its digits is 174960, while the sum is 43.

The square root of 239621965 is about 15479.7275492820. The cubic root of 239621965 is about 621.1200401005.

The spelling of 239621965 in words is "two hundred thirty-nine million, six hundred twenty-one thousand, nine hundred sixty-five".