382591997 has 2 divisors, whose sum is σ = 382591998. Its totient is φ = 382591996.

The previous prime is 382591991. The next prime is 382592017. The reversal of 382591997 is 799195283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 338780836 + 43811161 = 18406^2 + 6619^2 .

It is a cyclic number.

It is not a de Polignac number, because 382591997 - 2⁴ = 382591981 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382591991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191295998 + 191295999.

It is an arithmetic number, because the mean of its divisors is an integer number (191295999).

Almost surely, 2^382591997 is an apocalyptic number.

It is an amenable number.

382591997 is a deficient number, since it is larger than the sum of its proper divisors (1).

382591997 is an equidigital number, since it uses as much as digits as its factorization.

382591997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 53.

The square root of 382591997 is about 19559.9590234745. The cubic root of 382591997 is about 725.9587771649.

The spelling of 382591997 in words is "three hundred eighty-two million, five hundred ninety-one thousand, nine hundred ninety-seven".