697142984 has 24 divisors (see below), whose sum is σ = 1379566710. Its totient is φ = 330224256.

The previous prime is 697142983. The next prime is 697143001. The reversal of 697142984 is 489241796.

It can be written as a sum of positive squares in only one way, i.e., 428904100 + 268238884 = 20710^2 + 16378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697142983) 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, 117809 + ... + 123584.

Almost surely, 2^697142984 is an apocalyptic number.

It is an amenable number.

697142984 is a deficient number, since it is larger than the sum of its proper divisors (682423726).

697142984 is a wasteful number, since it uses less digits than its factorization.

697142984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241437 (or 241414 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 697142984 is about 26403.4653786203. The cubic root of 697142984 is about 886.6943755513.

The spelling of 697142984 in words is "six hundred ninety-seven million, one hundred forty-two thousand, nine hundred eighty-four".