697149264 has 120 divisors (see below), whose sum is σ = 2151895008. Its totient is φ = 193777920.

The previous prime is 697149203. The next prime is 697149269. The reversal of 697149264 is 462941796.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697149269) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83019 + ... + 91029.

Almost surely, 2^697149264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697149264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075947504).

697149264 is an abundant number, since it is smaller than the sum of its proper divisors (1454745744).

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

697149264 is a wasteful number, since it uses less digits than its factorization.

697149264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8073 (or 8060 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 697149264 is about 26403.5843021360. The cubic root of 697149264 is about 886.6970380486.

The spelling of 697149264 in words is "six hundred ninety-seven million, one hundred forty-nine thousand, two hundred sixty-four".