426625587 has 6 divisors (see below), whose sum is σ = 616236972. Its totient is φ = 284417052.

The previous prime is 426625571. The next prime is 426625603. The reversal of 426625587 is 785526624.

426625587 is a `hidden beast` number, since 4 + 2 + 6 + 62 + 5 + 587 = 666.

It is an interprime number because it is at equal distance from previous prime (426625571) and next prime (426625603).

It is not a de Polignac number, because 426625587 - 2⁴ = 426625571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426625987) 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, 23701413 + ... + 23701430.

It is an arithmetic number, because the mean of its divisors is an integer number (102706162).

Almost surely, 2^426625587 is an apocalyptic number.

426625587 is a deficient number, since it is larger than the sum of its proper divisors (189611385).

426625587 is a wasteful number, since it uses less digits than its factorization.

426625587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47402849 (or 47402846 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 426625587 is about 20654.9167754315. The cubic root of 426625587 is about 752.8046614254.

The spelling of 426625587 in words is "four hundred twenty-six million, six hundred twenty-five thousand, five hundred eighty-seven".