697358464 has 64 divisors (see below), whose sum is σ = 1523047680. Its totient is φ = 315417600.

The previous prime is 697358461. The next prime is 697358503. The reversal of 697358464 is 464853796.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (697358461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312874 + ... + 315094.

It is an arithmetic number, because the mean of its divisors is an integer number (23797620).

Almost surely, 2^697358464 is an apocalyptic number.

697358464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697358464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (761523840).

697358464 is an abundant number, since it is smaller than the sum of its proper divisors (825689216).

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

697358464 is a wasteful number, since it uses less digits than its factorization.

697358464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469 (or 2457 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The square root of 697358464 is about 26407.5455883352. The cubic root of 697358464 is about 886.7857222938.

The spelling of 697358464 in words is "six hundred ninety-seven million, three hundred fifty-eight thousand, four hundred sixty-four".