697492066 has 16 divisors (see below), whose sum is σ = 1092869568. Its totient is φ = 333234000.

The previous prime is 697492063. The next prime is 697492073. The reversal of 697492066 is 660294796.

It is not an unprimeable number, because it can be changed into a prime (697492063) 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 7 ways as a sum of consecutive naturals, for example, 39541 + ... + 54391.

It is an arithmetic number, because the mean of its divisors is an integer number (68304348).

Almost surely, 2^697492066 is an apocalyptic number.

697492066 is a deficient number, since it is larger than the sum of its proper divisors (395377502).

697492066 is a wasteful number, since it uses less digits than its factorization.

697492066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15897.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 697492066 is about 26410.0750850883. The cubic root of 697492066 is about 886.8423496894.

The spelling of 697492066 in words is "six hundred ninety-seven million, four hundred ninety-two thousand, sixty-six".