421412377 has 2 divisors, whose sum is σ = 421412378. Its totient is φ = 421412376.

The previous prime is 421412347. The next prime is 421412389. The reversal of 421412377 is 773214124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224880016 + 196532361 = 14996^2 + 14019^2 .

It is a cyclic number.

It is not a de Polignac number, because 421412377 - 2⁷ = 421412249 is a prime.

It is not a weakly prime, because it can be changed into another prime (421412347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210706188 + 210706189.

It is an arithmetic number, because the mean of its divisors is an integer number (210706189).

Almost surely, 2^421412377 is an apocalyptic number.

It is an amenable number.

421412377 is a deficient number, since it is larger than the sum of its proper divisors (1).

421412377 is an equidigital number, since it uses as much as digits as its factorization.

421412377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 31.

The square root of 421412377 is about 20528.3310817027. The cubic root of 421412377 is about 749.7257527672.

The spelling of 421412377 in words is "four hundred twenty-one million, four hundred twelve thousand, three hundred seventy-seven".