457999823 has 2 divisors, whose sum is σ = 457999824. Its totient is φ = 457999822.

The previous prime is 457999811. The next prime is 457999877. The reversal of 457999823 is 328999754.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457999823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457992823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228999911 + 228999912.

It is an arithmetic number, because the mean of its divisors is an integer number (228999912).

Almost surely, 2^457999823 is an apocalyptic number.

457999823 is a deficient number, since it is larger than the sum of its proper divisors (1).

457999823 is an equidigital number, since it uses as much as digits as its factorization.

457999823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 56.

The square root of 457999823 is about 21400.9304236989. The cubic root of 457999823 is about 770.8237785177.

The spelling of 457999823 in words is "four hundred fifty-seven million, nine hundred ninety-nine thousand, eight hundred twenty-three".