422715537 has 8 divisors (see below), whose sum is σ = 626245280. Its totient is φ = 281810340.

The previous prime is 422715521. The next prime is 422715581. The reversal of 422715537 is 735517224.

It is not a de Polignac number, because 422715537 - 2⁴ = 422715521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422715037) 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, 7828039 + ... + 7828092.

It is an arithmetic number, because the mean of its divisors is an integer number (78280660).

Almost surely, 2^422715537 is an apocalyptic number.

It is an amenable number.

422715537 is a deficient number, since it is larger than the sum of its proper divisors (203529743).

422715537 is a wasteful number, since it uses less digits than its factorization.

422715537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15656140 (or 15656134 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 422715537 is about 20560.0471059772. The cubic root of 422715537 is about 750.4977655662.

The spelling of 422715537 in words is "four hundred twenty-two million, seven hundred fifteen thousand, five hundred thirty-seven".