697430672 has 20 divisors (see below), whose sum is σ = 1352102076. Its totient is φ = 348501120.

The previous prime is 697430659. The next prime is 697430677. The reversal of 697430672 is 276034796.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 109077136 + 588353536 = 10444^2 + 24256^2 .

It is not an unprimeable number, because it can be changed into a prime (697430677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15338 + ... + 40374.

Almost surely, 2^697430672 is an apocalyptic number.

It is an amenable number.

697430672 is a deficient number, since it is larger than the sum of its proper divisors (654671404).

697430672 is a wasteful number, since it uses less digits than its factorization.

697430672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26786 (or 26780 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 44.

The square root of 697430672 is about 26408.9127379375. The cubic root of 697430672 is about 886.8163286542.

The spelling of 697430672 in words is "six hundred ninety-seven million, four hundred thirty thousand, six hundred seventy-two".