791850881 has 2 divisors, whose sum is σ = 791850882. Its totient is φ = 791850880.

The previous prime is 791850863. The next prime is 791850893. The reversal of 791850881 is 188058197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 556535281 + 235315600 = 23591^2 + 15340^2 .

It is a cyclic number.

It is not a de Polignac number, because 791850881 - 2⁶ = 791850817 is a prime.

It is a super-2 number, since 2×791850881² = 1254055635480952322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (791850811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395925440 + 395925441.

It is an arithmetic number, because the mean of its divisors is an integer number (395925441).

Almost surely, 2^791850881 is an apocalyptic number.

It is an amenable number.

791850881 is a deficient number, since it is larger than the sum of its proper divisors (1).

791850881 is an equidigital number, since it uses as much as digits as its factorization.

791850881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 47.

The square root of 791850881 is about 28139.8450777541. The cubic root of 791850881 is about 925.1549313410.

The spelling of 791850881 in words is "seven hundred ninety-one million, eight hundred fifty thousand, eight hundred eighty-one".