697233140 has 12 divisors (see below), whose sum is σ = 1464189636. Its totient is φ = 278893248.

The previous prime is 697233107. The next prime is 697233169. The reversal of 697233140 is 41332796.

It can be written as a sum of positive squares in 2 ways, for example, as 135163876 + 562069264 = 11626^2 + 23708^2 .

It is a super-2 number, since 2×697233140² = 972268103028519200, 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 697233140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17430809 + ... + 17430848.

It is an arithmetic number, because the mean of its divisors is an integer number (122015803).

Almost surely, 2^697233140 is an apocalyptic number.

It is an amenable number.

697233140 is an abundant number, since it is smaller than the sum of its proper divisors (766956496).

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

697233140 is a wasteful number, since it uses less digits than its factorization.

697233140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34861666 (or 34861664 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 697233140 is about 26405.1725993223. The cubic root of 697233140 is about 886.7325969655.

The spelling of 697233140 in words is "six hundred ninety-seven million, two hundred thirty-three thousand, one hundred forty".