457499989 has 2 divisors, whose sum is σ = 457499990. Its totient is φ = 457499988.

The previous prime is 457499921. The next prime is 457500047. The reversal of 457499989 is 989994754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426752964 + 30747025 = 20658^2 + 5545^2 .

It is a cyclic number.

It is not a de Polignac number, because 457499989 - 2¹⁷ = 457368917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 457499989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457499909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228749994 + 228749995.

It is an arithmetic number, because the mean of its divisors is an integer number (228749995).

Almost surely, 2^457499989 is an apocalyptic number.

It is an amenable number.

457499989 is a deficient number, since it is larger than the sum of its proper divisors (1).

457499989 is an equidigital number, since it uses as much as digits as its factorization.

457499989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 64.

The square root of 457499989 is about 21389.2493790689. The cubic root of 457499989 is about 770.5432659084.

The spelling of 457499989 in words is "four hundred fifty-seven million, four hundred ninety-nine thousand, nine hundred eighty-nine".