697969842 has 16 divisors (see below), whose sum is σ = 1398720960. Its totient is φ = 232193072.

The previous prime is 697969817. The next prime is 697969849. The reversal of 697969842 is 248969796.

It is not an unprimeable number, because it can be changed into a prime (697969849) 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, 112617 + ... + 118652.

It is an arithmetic number, because the mean of its divisors is an integer number (87420060).

Almost surely, 2^697969842 is an apocalyptic number.

697969842 is an abundant number, since it is smaller than the sum of its proper divisors (700751118).

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

697969842 is a wasteful number, since it uses less digits than its factorization.

697969842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231777.

The product of its digits is 11757312, while the sum is 60.

The square root of 697969842 is about 26419.1188725135. The cubic root of 697969842 is about 887.0447965710.

The spelling of 697969842 in words is "six hundred ninety-seven million, nine hundred sixty-nine thousand, eight hundred forty-two".