697494943 has 2 divisors, whose sum is σ = 697494944. Its totient is φ = 697494942.

The previous prime is 697494937. The next prime is 697494953. The reversal of 697494943 is 349494796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 697494943 - 2¹⁷ = 697363871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (697494953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348747471 + 348747472.

It is an arithmetic number, because the mean of its divisors is an integer number (348747472).

Almost surely, 2^697494943 is an apocalyptic number.

697494943 is a deficient number, since it is larger than the sum of its proper divisors (1).

697494943 is an equidigital number, since it uses as much as digits as its factorization.

697494943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 55.

The square root of 697494943 is about 26410.1295528818. The cubic root of 697494943 is about 886.8435690304.

The spelling of 697494943 in words is "six hundred ninety-seven million, four hundred ninety-four thousand, nine hundred forty-three".