426570667 has 4 divisors (see below), whose sum is σ = 427960456. Its totient is φ = 425180880.

The previous prime is 426570643. The next prime is 426570713. The reversal of 426570667 is 766075624.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426570667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426570607) 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, 694434 + ... + 695047.

It is an arithmetic number, because the mean of its divisors is an integer number (106990114).

Almost surely, 2^426570667 is an apocalyptic number.

426570667 is a deficient number, since it is larger than the sum of its proper divisors (1389789).

426570667 is a wasteful number, since it uses less digits than its factorization.

426570667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389788.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 426570667 is about 20653.5872671069. The cubic root of 426570667 is about 752.7723569040.

The spelling of 426570667 in words is "four hundred twenty-six million, five hundred seventy thousand, six hundred sixty-seven".