455865889 has 2 divisors, whose sum is σ = 455865890. Its totient is φ = 455865888.

The previous prime is 455865869. The next prime is 455865973. The reversal of 455865889 is 988568554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288422289 + 167443600 = 16983^2 + 12940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455865889 is a prime.

It is not a weakly prime, because it can be changed into another prime (455865859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227932944 + 227932945.

It is an arithmetic number, because the mean of its divisors is an integer number (227932945).

Almost surely, 2^455865889 is an apocalyptic number.

It is an amenable number.

455865889 is a deficient number, since it is larger than the sum of its proper divisors (1).

455865889 is an equidigital number, since it uses as much as digits as its factorization.

455865889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824000, while the sum is 58.

The square root of 455865889 is about 21351.0161116515. The cubic root of 455865889 is about 769.6247617902.

The spelling of 455865889 in words is "four hundred fifty-five million, eight hundred sixty-five thousand, eight hundred eighty-nine".