457417621 has 2 divisors, whose sum is σ = 457417622. Its totient is φ = 457417620.

The previous prime is 457417603. The next prime is 457417651. The reversal of 457417621 is 126714754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298909521 + 158508100 = 17289^2 + 12590^2 .

It is a cyclic number.

It is not a de Polignac number, because 457417621 - 2²³ = 449029013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457417601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228708810 + 228708811.

It is an arithmetic number, because the mean of its divisors is an integer number (228708811).

Almost surely, 2^457417621 is an apocalyptic number.

It is an amenable number.

457417621 is a deficient number, since it is larger than the sum of its proper divisors (1).

457417621 is an equidigital number, since it uses as much as digits as its factorization.

457417621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47040, while the sum is 37.

The square root of 457417621 is about 21387.3238391342. The cubic root of 457417621 is about 770.4970204304.

The spelling of 457417621 in words is "four hundred fifty-seven million, four hundred seventeen thousand, six hundred twenty-one".