456986989 has 2 divisors, whose sum is σ = 456986990. Its totient is φ = 456986988.

The previous prime is 456986951. The next prime is 456987043. The reversal of 456986989 is 989689654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 393704964 + 63282025 = 19842^2 + 7955^2 .

It is a cyclic number.

It is not a de Polignac number, because 456986989 - 2¹⁵ = 456954221 is a prime.

It is a super-2 number, since 2×456986989² = 417674216230572242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 456986989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456986909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228493494 + 228493495.

It is an arithmetic number, because the mean of its divisors is an integer number (228493495).

Almost surely, 2^456986989 is an apocalyptic number.

It is an amenable number.

456986989 is a deficient number, since it is larger than the sum of its proper divisors (1).

456986989 is an equidigital number, since it uses as much as digits as its factorization.

456986989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33592320, while the sum is 64.

The square root of 456986989 is about 21377.2540098115. The cubic root of 456986989 is about 770.2551518506.

It can be divided in two parts, 456986 and 989, that multiplied together give a palindrome (451959154).

The spelling of 456986989 in words is "four hundred fifty-six million, nine hundred eighty-six thousand, nine hundred eighty-nine".