417661379 has 2 divisors, whose sum is σ = 417661380. Its totient is φ = 417661378.

The previous prime is 417661367. The next prime is 417661417. The reversal of 417661379 is 973166714.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 417661379 - 2²⁰ = 416612803 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (417661579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208830689 + 208830690.

It is an arithmetic number, because the mean of its divisors is an integer number (208830690).

Almost surely, 2^417661379 is an apocalyptic number.

417661379 is a deficient number, since it is larger than the sum of its proper divisors (1).

417661379 is an equidigital number, since it uses as much as digits as its factorization.

417661379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 44.

The square root of 417661379 is about 20436.7653751762. The cubic root of 417661379 is about 747.4946798874.

The spelling of 417661379 in words is "four hundred seventeen million, six hundred sixty-one thousand, three hundred seventy-nine".