697421682 has 12 divisors (see below), whose sum is σ = 1511080350. Its totient is φ = 232473888.

The previous prime is 697421639. The next prime is 697421689. The reversal of 697421682 is 286124796.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 527666841 + 169754841 = 22971^2 + 13029^2 .

It is not an unprimeable number, because it can be changed into a prime (697421689) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19372807 + ... + 19372842.

Almost surely, 2^697421682 is an apocalyptic number.

697421682 is an abundant number, since it is smaller than the sum of its proper divisors (813658668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

697421682 is a wasteful number, since it uses less digits than its factorization.

697421682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38745657 (or 38745654 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 697421682 is about 26408.7425297003. The cubic root of 697421682 is about 886.8125182334.

The spelling of 697421682 in words is "six hundred ninety-seven million, four hundred twenty-one thousand, six hundred eighty-two".