426552921 has 6 divisors (see below), whose sum is σ = 616132010. Its totient is φ = 284368608.

The previous prime is 426552913. The next prime is 426552947. The reversal of 426552921 is 129255624.

It can be written as a sum of positive squares in only one way, i.e., 263607696 + 162945225 = 16236^2 + 12765^2 .

It is not a de Polignac number, because 426552921 - 2³ = 426552913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426552911) 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, 23697376 + ... + 23697393.

Almost surely, 2^426552921 is an apocalyptic number.

It is an amenable number.

426552921 is a deficient number, since it is larger than the sum of its proper divisors (189579089).

426552921 is a wasteful number, since it uses less digits than its factorization.

426552921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47394775 (or 47394772 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 426552921 is about 20653.1576520396. The cubic root of 426552921 is about 752.7619179275.

The spelling of 426552921 in words is "four hundred twenty-six million, five hundred fifty-two thousand, nine hundred twenty-one".