697361856 has 56 divisors (see below), whose sum is σ = 1850044560. Its totient is φ = 231831552.

The previous prime is 697361839. The next prime is 697361867. The reversal of 697361856 is 658163796.

It is a junction number, because it is equal to n+sod(n) for n = 697361799 and 697361808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70020 + ... + 79356.

It is an arithmetic number, because the mean of its divisors is an integer number (33036510).

Almost surely, 2^697361856 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 697361856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (925022280).

697361856 is an abundant number, since it is smaller than the sum of its proper divisors (1152682704).

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

697361856 is a wasteful number, since it uses less digits than its factorization.

697361856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9741 (or 9731 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 697361856 is about 26407.6098123249. The cubic root of 697361856 is about 886.7871600873.

The spelling of 697361856 in words is "six hundred ninety-seven million, three hundred sixty-one thousand, eight hundred fifty-six".