422492977 has 2 divisors, whose sum is σ = 422492978. Its totient is φ = 422492976.

The previous prime is 422492971. The next prime is 422492981. The reversal of 422492977 is 779294224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 328189456 + 94303521 = 18116^2 + 9711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422492977 is a prime.

It is a super-2 number, since 2×422492977² = 357000631228645058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (422492971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211246488 + 211246489.

It is an arithmetic number, because the mean of its divisors is an integer number (211246489).

Almost surely, 2^422492977 is an apocalyptic number.

It is an amenable number.

422492977 is a deficient number, since it is larger than the sum of its proper divisors (1).

422492977 is an equidigital number, since it uses as much as digits as its factorization.

422492977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 46.

The square root of 422492977 is about 20554.6339544152. The cubic root of 422492977 is about 750.3660299263.

The spelling of 422492977 in words is "four hundred twenty-two million, four hundred ninety-two thousand, nine hundred seventy-seven".