457287893 has 2 divisors, whose sum is σ = 457287894. Its totient is φ = 457287892.

The previous prime is 457287833. The next prime is 457287923. The reversal of 457287893 is 398782754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 457189924 + 97969 = 21382^2 + 313^2 .

It is a cyclic number.

It is not a de Polignac number, because 457287893 - 2¹⁸ = 457025749 is a prime.

It is a super-2 number, since 2×457287893² = 418224434168758898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457287833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228643946 + 228643947.

It is an arithmetic number, because the mean of its divisors is an integer number (228643947).

Almost surely, 2^457287893 is an apocalyptic number.

It is an amenable number.

457287893 is a deficient number, since it is larger than the sum of its proper divisors (1).

457287893 is an equidigital number, since it uses as much as digits as its factorization.

457287893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 53.

The square root of 457287893 is about 21384.2907995566. The cubic root of 457287893 is about 770.4241734420.

The spelling of 457287893 in words is "four hundred fifty-seven million, two hundred eighty-seven thousand, eight hundred ninety-three".