457320693 has 4 divisors (see below), whose sum is σ = 609760928. Its totient is φ = 304880460.

The previous prime is 457320631. The next prime is 457320701. The reversal of 457320693 is 396023754.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 457320693 - 2¹² = 457316597 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 (457320613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76220113 + ... + 76220118.

It is an arithmetic number, because the mean of its divisors is an integer number (152440232).

Almost surely, 2^457320693 is an apocalyptic number.

It is an amenable number.

457320693 is a deficient number, since it is larger than the sum of its proper divisors (152440235).

457320693 is a wasteful number, since it uses less digits than its factorization.

457320693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152440234.

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 457320693 is about 21385.0577039203. The cubic root of 457320693 is about 770.4425931357.

The spelling of 457320693 in words is "four hundred fifty-seven million, three hundred twenty thousand, six hundred ninety-three".