239136797 has 2 divisors, whose sum is σ = 239136798. Its totient is φ = 239136796.

The previous prime is 239136787. The next prime is 239136827. The reversal of 239136797 is 797631932.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234518596 + 4618201 = 15314^2 + 2149^2 .

It is a cyclic number.

It is not a de Polignac number, because 239136797 - 2²⁴ = 222359581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239136707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119568398 + 119568399.

It is an arithmetic number, because the mean of its divisors is an integer number (119568399).

Almost surely, 2^239136797 is an apocalyptic number.

It is an amenable number.

239136797 is a deficient number, since it is larger than the sum of its proper divisors (1).

239136797 is an equidigital number, since it uses as much as digits as its factorization.

239136797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 428652, while the sum is 47.

The square root of 239136797 is about 15464.0485319983. The cubic root of 239136797 is about 620.7005582742.

The spelling of 239136797 in words is "two hundred thirty-nine million, one hundred thirty-six thousand, seven hundred ninety-seven".