238972633 has 4 divisors (see below), whose sum is σ = 251550160. Its totient is φ = 226395108.

The previous prime is 238972619. The next prime is 238972639. The reversal of 238972633 is 336279832.

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 de Polignac number, because none of the positive numbers 2^k-238972633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 238972633.

It is not an unprimeable number, because it can be changed into a prime (238972639) 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, 6288735 + ... + 6288772.

It is an arithmetic number, because the mean of its divisors is an integer number (62887540).

Almost surely, 2^238972633 is an apocalyptic number.

It is an amenable number.

238972633 is a deficient number, since it is larger than the sum of its proper divisors (12577527).

238972633 is a wasteful number, since it uses less digits than its factorization.

238972633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12577526.

The product of its digits is 326592, while the sum is 43.

The square root of 238972633 is about 15458.7396963659. The cubic root of 238972633 is about 620.5584917339.

The spelling of 238972633 in words is "two hundred thirty-eight million, nine hundred seventy-two thousand, six hundred thirty-three".