457217479 has 2 divisors, whose sum is σ = 457217480. Its totient is φ = 457217478.

The previous prime is 457217359. The next prime is 457217489. The reversal of 457217479 is 974712754.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457217479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457217489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228608739 + 228608740.

It is an arithmetic number, because the mean of its divisors is an integer number (228608740).

Almost surely, 2^457217479 is an apocalyptic number.

457217479 is a deficient number, since it is larger than the sum of its proper divisors (1).

457217479 is an equidigital number, since it uses as much as digits as its factorization.

457217479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 493920, while the sum is 46.

The square root of 457217479 is about 21382.6443406797. The cubic root of 457217479 is about 770.3846276524.

The spelling of 457217479 in words is "four hundred fifty-seven million, two hundred seventeen thousand, four hundred seventy-nine".