421627051 has 2 divisors, whose sum is σ = 421627052. Its totient is φ = 421627050.

The previous prime is 421627033. The next prime is 421627061. The reversal of 421627051 is 150726124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421627051 - 2⁷ = 421626923 is a prime.

It is equal to p_22426453 and since 421627051 and 22426453 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (421627021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210813525 + 210813526.

It is an arithmetic number, because the mean of its divisors is an integer number (210813526).

Almost surely, 2^421627051 is an apocalyptic number.

421627051 is a deficient number, since it is larger than the sum of its proper divisors (1).

421627051 is an equidigital number, since it uses as much as digits as its factorization.

421627051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 421627051 is about 20533.5591410744. The cubic root of 421627051 is about 749.8530384642.

The spelling of 421627051 in words is "four hundred twenty-one million, six hundred twenty-seven thousand, fifty-one".