422487977 has 2 divisors, whose sum is σ = 422487978. Its totient is φ = 422487976.

The previous prime is 422487953. The next prime is 422488019. The reversal of 422487977 is 779784224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422261401 + 226576 = 20549^2 + 476^2 .

It is a cyclic number.

It is not a de Polignac number, because 422487977 - 2⁸ = 422487721 is a prime.

It is not a weakly prime, because it can be changed into another prime (422487907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211243988 + 211243989.

It is an arithmetic number, because the mean of its divisors is an integer number (211243989).

Almost surely, 2^422487977 is an apocalyptic number.

It is an amenable number.

422487977 is a deficient number, since it is larger than the sum of its proper divisors (1).

422487977 is an equidigital number, since it uses as much as digits as its factorization.

422487977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1580544, while the sum is 50.

The square root of 422487977 is about 20554.5123269807. The cubic root of 422487977 is about 750.3630698417.

The spelling of 422487977 in words is "four hundred twenty-two million, four hundred eighty-seven thousand, nine hundred seventy-seven".