426862621 has 4 divisors (see below), whose sum is σ = 430223872. Its totient is φ = 423501372.

The previous prime is 426862613. The next prime is 426862627. The reversal of 426862621 is 126268624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 426862621 - 2³ = 426862613 is a prime.

It is a super-3 number, since 3×426862621³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426862627) 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, 1680435 + ... + 1680688.

It is an arithmetic number, because the mean of its divisors is an integer number (107555968).

Almost surely, 2^426862621 is an apocalyptic number.

It is an amenable number.

426862621 is a deficient number, since it is larger than the sum of its proper divisors (3361251).

426862621 is a wasteful number, since it uses less digits than its factorization.

426862621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361250.

The product of its digits is 55296, while the sum is 37.

The square root of 426862621 is about 20660.6539344717. The cubic root of 426862621 is about 752.9440555206.

The spelling of 426862621 in words is "four hundred twenty-six million, eight hundred sixty-two thousand, six hundred twenty-one".