426008647 has 4 divisors (see below), whose sum is σ = 434046600. Its totient is φ = 417970696.

The previous prime is 426008621. The next prime is 426008651. The reversal of 426008647 is 746800624.

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

It is a cyclic number.

It is not a de Polignac number, because 426008647 - 2¹⁹ = 425484359 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 (426008617) 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, 4018897 + ... + 4019002.

It is an arithmetic number, because the mean of its divisors is an integer number (108511650).

Almost surely, 2^426008647 is an apocalyptic number.

426008647 is a deficient number, since it is larger than the sum of its proper divisors (8037953).

426008647 is an equidigital number, since it uses as much as digits as its factorization.

426008647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8037952.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 426008647 is about 20639.9769137468. The cubic root of 426008647 is about 752.4416113458.

The spelling of 426008647 in words is "four hundred twenty-six million, eight thousand, six hundred forty-seven".