457940917 has 12 divisors (see below), whose sum is σ = 564043500. Its totient is φ = 369430656.

The previous prime is 457940909. The next prime is 457940933. The reversal of 457940917 is 719049754.

It can be written as a sum of positive squares in 2 ways, for example, as 353778481 + 104162436 = 18809^2 + 10206^2 .

It is not a de Polignac number, because 457940917 - 2³ = 457940909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457940017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274042 + ... + 275707.

It is an arithmetic number, because the mean of its divisors is an integer number (47003625).

Almost surely, 2^457940917 is an apocalyptic number.

It is an amenable number.

457940917 is a deficient number, since it is larger than the sum of its proper divisors (106102583).

457940917 is a wasteful number, since it uses less digits than its factorization.

457940917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549780 (or 549773 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 457940917 is about 21399.5541308692. The cubic root of 457940917 is about 770.7907304028.

The spelling of 457940917 in words is "four hundred fifty-seven million, nine hundred forty thousand, nine hundred seventeen".