456333989 has 2 divisors, whose sum is σ = 456333990. Its totient is φ = 456333988.

The previous prime is 456333973. The next prime is 456333991. The reversal of 456333989 is 989333654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 447660964 + 8673025 = 21158^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 456333989 - 2⁴ = 456333973 is a prime.

Together with 456333991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456333289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228166994 + 228166995.

It is an arithmetic number, because the mean of its divisors is an integer number (228166995).

Almost surely, 2^456333989 is an apocalyptic number.

It is an amenable number.

456333989 is a deficient number, since it is larger than the sum of its proper divisors (1).

456333989 is an equidigital number, since it uses as much as digits as its factorization.

456333989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 50.

The square root of 456333989 is about 21361.9753066050. The cubic root of 456333989 is about 769.8880980916. Note that the first 3 decimals are identical.

The spelling of 456333989 in words is "four hundred fifty-six million, three hundred thirty-three thousand, nine hundred eighty-nine".