456233989 has 2 divisors, whose sum is σ = 456233990. Its totient is φ = 456233988.

The previous prime is 456233941. The next prime is 456234007. The reversal of 456233989 is 989332654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270865764 + 185368225 = 16458^2 + 13615^2 .

It is a cyclic number.

It is not a de Polignac number, because 456233989 - 2⁷ = 456233861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456233929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228116994 + 228116995.

It is an arithmetic number, because the mean of its divisors is an integer number (228116995).

Almost surely, 2^456233989 is an apocalyptic number.

It is an amenable number.

456233989 is a deficient number, since it is larger than the sum of its proper divisors (1).

456233989 is an equidigital number, since it uses as much as digits as its factorization.

456233989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 49.

The square root of 456233989 is about 21359.6345708441. The cubic root of 456233989 is about 769.8318568034.

The spelling of 456233989 in words is "four hundred fifty-six million, two hundred thirty-three thousand, nine hundred eighty-nine".