422699931 has 8 divisors (see below), whose sum is σ = 626222160. Its totient is φ = 281799936.

The previous prime is 422699903. The next prime is 422699947. The reversal of 422699931 is 139996224.

It is a happy number.

It is not a de Polignac number, because 422699931 - 2⁶ = 422699867 is a prime.

It is a super-2 number, since 2×422699931² = 357350463334809522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422699971) 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, 7827750 + ... + 7827803.

It is an arithmetic number, because the mean of its divisors is an integer number (78277770).

Almost surely, 2^422699931 is an apocalyptic number.

422699931 is a deficient number, since it is larger than the sum of its proper divisors (203522229).

422699931 is a wasteful number, since it uses less digits than its factorization.

422699931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15655562 (or 15655556 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 422699931 is about 20559.6675799975. The cubic root of 422699931 is about 750.4885297159.

The spelling of 422699931 in words is "four hundred twenty-two million, six hundred ninety-nine thousand, nine hundred thirty-one".