457894321 has 2 divisors, whose sum is σ = 457894322. Its totient is φ = 457894320.

The previous prime is 457894313. The next prime is 457894379. The reversal of 457894321 is 123498754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 439950625 + 17943696 = 20975^2 + 4236^2 .

It is a cyclic number.

It is not a de Polignac number, because 457894321 - 2³ = 457894313 is a prime.

It is not a weakly prime, because it can be changed into another prime (457894301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228947160 + 228947161.

It is an arithmetic number, because the mean of its divisors is an integer number (228947161).

Almost surely, 2^457894321 is an apocalyptic number.

It is an amenable number.

457894321 is a deficient number, since it is larger than the sum of its proper divisors (1).

457894321 is an equidigital number, since it uses as much as digits as its factorization.

457894321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 43.

The square root of 457894321 is about 21398.4653889011. The cubic root of 457894321 is about 770.7645865767.

The spelling of 457894321 in words is "four hundred fifty-seven million, eight hundred ninety-four thousand, three hundred twenty-one".