697117872 has 80 divisors (see below), whose sum is σ = 1969338240. Its totient is φ = 210739200.

The previous prime is 697117871. The next prime is 697117877. The reversal of 697117872 is 278711796.

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

It is not an unprimeable number, because it can be changed into a prime (697117871) 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 15 ways as a sum of consecutive naturals, for example, 257904 + ... + 260592.

It is an arithmetic number, because the mean of its divisors is an integer number (24616728).

Almost surely, 2^697117872 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 697117872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (984669120).

697117872 is an abundant number, since it is smaller than the sum of its proper divisors (1272220368).

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

697117872 is a wasteful number, since it uses less digits than its factorization.

697117872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202 (or 3196 counting only the distinct ones).

The product of its digits is 296352, while the sum is 48.

The square root of 697117872 is about 26402.9898306991. The cubic root of 697117872 is about 886.6837287940.

The spelling of 697117872 in words is "six hundred ninety-seven million, one hundred seventeen thousand, eight hundred seventy-two".