417402749 has 2 divisors, whose sum is σ = 417402750. Its totient is φ = 417402748.

The previous prime is 417402743. The next prime is 417402779. The reversal of 417402749 is 947204714.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208802500 + 208600249 = 14450^2 + 14443^2 .

It is a cyclic number.

It is not a de Polignac number, because 417402749 - 2⁸ = 417402493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (417402743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208701374 + 208701375.

It is an arithmetic number, because the mean of its divisors is an integer number (208701375).

Almost surely, 2^417402749 is an apocalyptic number.

It is an amenable number.

417402749 is a deficient number, since it is larger than the sum of its proper divisors (1).

417402749 is an equidigital number, since it uses as much as digits as its factorization.

417402749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 417402749 is about 20430.4368284185. The cubic root of 417402749 is about 747.3403567308.

The spelling of 417402749 in words is "four hundred seventeen million, four hundred two thousand, seven hundred forty-nine".