697944366 has 48 divisors (see below), whose sum is σ = 1819209600. Its totient is φ = 188916624.

The previous prime is 697944343. The next prime is 697944383. The reversal of 697944366 is 663449796.

697944366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×697944366² = 974252676062283912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143376 + ... + 148163.

It is an arithmetic number, because the mean of its divisors is an integer number (37900200).

Almost surely, 2^697944366 is an apocalyptic number.

697944366 is an abundant number, since it is smaller than the sum of its proper divisors (1121265234).

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

697944366 is a wasteful number, since it uses less digits than its factorization.

697944366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291573 (or 291570 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 54.

The square root of 697944366 is about 26418.6367172873. The cubic root of 697944366 is about 887.0340040186.

The spelling of 697944366 in words is "six hundred ninety-seven million, nine hundred forty-four thousand, three hundred sixty-six".