699494431 has 2 divisors, whose sum is σ = 699494432. Its totient is φ = 699494430.

The previous prime is 699494347. The next prime is 699494479. The reversal of 699494431 is 134494996.

699494431 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 699494431 - 2⁹ = 699493919 is a prime.

It is a super-2 number, since 2×699494431² = 978584918000027522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (699494531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349747215 + 349747216.

It is an arithmetic number, because the mean of its divisors is an integer number (349747216).

Almost surely, 2^699494431 is an apocalyptic number.

699494431 is a deficient number, since it is larger than the sum of its proper divisors (1).

699494431 is an equidigital number, since it uses as much as digits as its factorization.

699494431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 49.

The square root of 699494431 is about 26447.9570288520. The cubic root of 699494431 is about 887.6901899082.

The spelling of 699494431 in words is "six hundred ninety-nine million, four hundred ninety-four thousand, four hundred thirty-one".