456989557 has 2 divisors, whose sum is σ = 456989558. Its totient is φ = 456989556.

The previous prime is 456989527. The next prime is 456989573. The reversal of 456989557 is 755989654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242923396 + 214066161 = 15586^2 + 14631^2 .

It is a cyclic number.

It is not a de Polignac number, because 456989557 - 2¹⁵ = 456956789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456989527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228494778 + 228494779.

It is an arithmetic number, because the mean of its divisors is an integer number (228494779).

Almost surely, 2^456989557 is an apocalyptic number.

It is an amenable number.

456989557 is a deficient number, since it is larger than the sum of its proper divisors (1).

456989557 is an equidigital number, since it uses as much as digits as its factorization.

456989557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608000, while the sum is 58.

The square root of 456989557 is about 21377.3140735687. The cubic root of 456989557 is about 770.2565946426.

It can be divided in two parts, 45698 and 9557, that added together give a palindrome (55255).

The spelling of 456989557 in words is "four hundred fifty-six million, nine hundred eighty-nine thousand, five hundred fifty-seven".