425336979 has 4 divisors (see below), whose sum is σ = 567115976. Its totient is φ = 283557984.

The previous prime is 425336827. The next prime is 425337001. The reversal of 425336979 is 979633524.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 425336979 - 2²¹ = 423239827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425336479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70889494 + ... + 70889499.

It is an arithmetic number, because the mean of its divisors is an integer number (141778994).

Almost surely, 2^425336979 is an apocalyptic number.

425336979 is a deficient number, since it is larger than the sum of its proper divisors (141778997).

425336979 is a wasteful number, since it uses less digits than its factorization.

425336979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141778996.

The product of its digits is 1224720, while the sum is 48.

The square root of 425336979 is about 20623.6994499047. The cubic root of 425336979 is about 752.0459567838.

The spelling of 425336979 in words is "four hundred twenty-five million, three hundred thirty-six thousand, nine hundred seventy-nine".