238839693 has 4 divisors (see below), whose sum is σ = 318452928. Its totient is φ = 159226460.

The previous prime is 238839691. The next prime is 238839697. The reversal of 238839693 is 396938832.

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 238839693 - 2¹ = 238839691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238839691) 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, 39806613 + ... + 39806618.

It is an arithmetic number, because the mean of its divisors is an integer number (79613232).

Almost surely, 2^238839693 is an apocalyptic number.

It is an amenable number.

238839693 is a deficient number, since it is larger than the sum of its proper divisors (79613235).

238839693 is an equidigital number, since it uses as much as digits as its factorization.

238839693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79613234.

The product of its digits is 1679616, while the sum is 51.

The square root of 238839693 is about 15454.4392651432. The cubic root of 238839693 is about 620.4433985714.

The spelling of 238839693 in words is "two hundred thirty-eight million, eight hundred thirty-nine thousand, six hundred ninety-three".