426979251 has 6 divisors (see below), whose sum is σ = 616747820. Its totient is φ = 284652828.

The previous prime is 426979211. The next prime is 426979253. The reversal of 426979251 is 152979624.

426979251 is a `hidden beast` number, since 426 + 97 + 92 + 51 = 666.

It is not a de Polignac number, because 426979251 - 2¹⁷ = 426848179 is a prime.

It is a super-2 number, since 2×426979251² = 364622561569042002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 426979197 and 426979206.

It is not an unprimeable number, because it can be changed into a prime (426979253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23721061 + ... + 23721078.

Almost surely, 2^426979251 is an apocalyptic number.

426979251 is a deficient number, since it is larger than the sum of its proper divisors (189768569).

426979251 is a wasteful number, since it uses less digits than its factorization.

426979251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47442145 (or 47442142 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 426979251 is about 20663.4762564289. The cubic root of 426979251 is about 753.0126239266.

The spelling of 426979251 in words is "four hundred twenty-six million, nine hundred seventy-nine thousand, two hundred fifty-one".