697131222 has 16 divisors (see below), whose sum is σ = 1426687680. Its totient is φ = 226972872.

The previous prime is 697131221. The next prime is 697131251. The reversal of 697131222 is 222131796.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697131221) 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, 1350772 + ... + 1351287.

It is an arithmetic number, because the mean of its divisors is an integer number (89167980).

Almost surely, 2^697131222 is an apocalyptic number.

697131222 is an abundant number, since it is smaller than the sum of its proper divisors (729556458).

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

697131222 is a wasteful number, since it uses less digits than its factorization.

697131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702107.

The product of its digits is 9072, while the sum is 33.

The square root of 697131222 is about 26403.2426417666. The cubic root of 697131222 is about 886.6893888374.

The spelling of 697131222 in words is "six hundred ninety-seven million, one hundred thirty-one thousand, two hundred twenty-two".