238864965 has 16 divisors (see below), whose sum is σ = 383788800. Its totient is φ = 126859712.

The previous prime is 238864961. The next prime is 238864987. The reversal of 238864965 is 569468832.

238864965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 238864965 - 2² = 238864961 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238864961) 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, 29730 + ... + 36899.

It is an arithmetic number, because the mean of its divisors is an integer number (23986800).

Almost surely, 2^238864965 is an apocalyptic number.

It is an amenable number.

238864965 is a deficient number, since it is larger than the sum of its proper divisors (144923835).

238864965 is a wasteful number, since it uses less digits than its factorization.

238864965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66876.

The product of its digits is 2488320, while the sum is 51.

The square root of 238864965 is about 15455.2568726631. The cubic root of 238864965 is about 620.4652811605.

The spelling of 238864965 in words is "two hundred thirty-eight million, eight hundred sixty-four thousand, nine hundred sixty-five".