2790657431 has 2 divisors, whose sum is σ = 2790657432. Its totient is φ = 2790657430.

The previous prime is 2790657403. The next prime is 2790657451. The reversal of 2790657431 is 1347560972.

2790657431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2790657431 - 2¹⁸ = 2790395287 is a prime.

It is a super-2 number, since 2×2790657431² = 15575537794391039522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2790657451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395328715 + 1395328716.

It is an arithmetic number, because the mean of its divisors is an integer number (1395328716).

Almost surely, 2^2790657431 is an apocalyptic number.

2790657431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2790657431 is an equidigital number, since it uses as much as digits as its factorization.

2790657431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 2790657431 is about 52826.6734803546. The cubic root of 2790657431 is about 1407.8903835911.

The spelling of 2790657431 in words is "two billion, seven hundred ninety million, six hundred fifty-seven thousand, four hundred thirty-one".