697541331 has 16 divisors (see below), whose sum is σ = 985319424. Its totient is φ = 437426304.

The previous prime is 697541311. The next prime is 697541381. The reversal of 697541331 is 133145796.

697541331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 697541331 - 2⁶ = 697541267 is a prime.

It is a super-2 number, since 2×697541331² = 973127816906503122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 697541331.

It is not an unprimeable number, because it can be changed into a prime (697541311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138646 + ... + 143588.

It is an arithmetic number, because the mean of its divisors is an integer number (61582464).

Almost surely, 2^697541331 is an apocalyptic number.

697541331 is a deficient number, since it is larger than the sum of its proper divisors (287778093).

697541331 is a wasteful number, since it uses less digits than its factorization.

697541331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7730.

The product of its digits is 68040, while the sum is 39.

The square root of 697541331 is about 26411.0077619162. The cubic root of 697541331 is about 886.8632289041.

The spelling of 697541331 in words is "six hundred ninety-seven million, five hundred forty-one thousand, three hundred thirty-one".