238392797 has 4 divisors (see below), whose sum is σ = 238423680. Its totient is φ = 238361916.

The previous prime is 238392793. The next prime is 238392799. The reversal of 238392797 is 797293832.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 238392797 - 2² = 238392793 is a prime.

It is a super-2 number, since 2×238392797² = 113662251322966418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238392793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7454 + ... + 23072.

It is an arithmetic number, because the mean of its divisors is an integer number (59605920).

Almost surely, 2^238392797 is an apocalyptic number.

It is an amenable number.

238392797 is a deficient number, since it is larger than the sum of its proper divisors (30883).

238392797 is a wasteful number, since it uses less digits than its factorization.

238392797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30882.

The product of its digits is 1143072, while the sum is 50.

The square root of 238392797 is about 15439.9739960921. The cubic root of 238392797 is about 620.0561837743.

The spelling of 238392797 in words is "two hundred thirty-eight million, three hundred ninety-two thousand, seven hundred ninety-seven".