426672917 has 8 divisors (see below), whose sum is σ = 471354240. Its totient is φ = 382973760.

The previous prime is 426672913. The next prime is 426672923. The reversal of 426672917 is 719276624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 426672917 - 2² = 426672913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426672913) 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, 244628 + ... + 246365.

It is an arithmetic number, because the mean of its divisors is an integer number (58919280).

Almost surely, 2^426672917 is an apocalyptic number.

It is an amenable number.

426672917 is a deficient number, since it is larger than the sum of its proper divisors (44681323).

426672917 is a wasteful number, since it uses less digits than its factorization.

426672917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491083.

The product of its digits is 254016, while the sum is 44.

The square root of 426672917 is about 20656.0624756995. The cubic root of 426672917 is about 752.8324992049.

The spelling of 426672917 in words is "four hundred twenty-six million, six hundred seventy-two thousand, nine hundred seventeen".