421474117 has 2 divisors, whose sum is σ = 421474118. Its totient is φ = 421474116.

The previous prime is 421474087. The next prime is 421474127. The reversal of 421474117 is 711474124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353477601 + 67996516 = 18801^2 + 8246^2 .

It is a cyclic number.

It is not a de Polignac number, because 421474117 - 2⁷ = 421473989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421474127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210737058 + 210737059.

It is an arithmetic number, because the mean of its divisors is an integer number (210737059).

Almost surely, 2^421474117 is an apocalyptic number.

It is an amenable number.

421474117 is a deficient number, since it is larger than the sum of its proper divisors (1).

421474117 is an equidigital number, since it uses as much as digits as its factorization.

421474117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6272, while the sum is 31.

The square root of 421474117 is about 20529.8348020631. The cubic root of 421474117 is about 749.7623644174.

It can be divided in two parts, 42147 and 4117, that added together give a palindrome (46264).

The spelling of 421474117 in words is "four hundred twenty-one million, four hundred seventy-four thousand, one hundred seventeen".