426920889 has 8 divisors (see below), whose sum is σ = 574754752. Its totient is φ = 281850480.

The previous prime is 426920843. The next prime is 426920891. The reversal of 426920889 is 988029624.

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

It is a de Polignac number, because none of the positive numbers 2^k-426920889 is a prime.

It is a super-2 number, since 2×426920889² = 364522890929100642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426922889) 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, 690502 + ... + 691119.

It is an arithmetic number, because the mean of its divisors is an integer number (71844344).

Almost surely, 2^426920889 is an apocalyptic number.

It is an amenable number.

426920889 is a deficient number, since it is larger than the sum of its proper divisors (147833863).

426920889 is a wasteful number, since it uses less digits than its factorization.

426920889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381727.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 426920889 is about 20662.0640062894. The cubic root of 426920889 is about 752.9783136526.

The spelling of 426920889 in words is "four hundred twenty-six million, nine hundred twenty thousand, eight hundred eighty-nine".