790381157 has 2 divisors, whose sum is σ = 790381158. Its totient is φ = 790381156.

The previous prime is 790381129. The next prime is 790381199. The reversal of 790381157 is 751183097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 741255076 + 49126081 = 27226^2 + 7009^2 .

It is a cyclic number.

It is not a de Polignac number, because 790381157 - 2²² = 786186853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (790381117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395190578 + 395190579.

It is an arithmetic number, because the mean of its divisors is an integer number (395190579).

Almost surely, 2^790381157 is an apocalyptic number.

It is an amenable number.

790381157 is a deficient number, since it is larger than the sum of its proper divisors (1).

790381157 is an equidigital number, since it uses as much as digits as its factorization.

790381157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 790381157 is about 28113.7183061935. The cubic root of 790381157 is about 924.5821953414.

The spelling of 790381157 in words is "seven hundred ninety million, three hundred eighty-one thousand, one hundred fifty-seven".