45660889 has 2 divisors, whose sum is σ = 45660890. Its totient is φ = 45660888.

The previous prime is 45660887. The next prime is 45660893. The reversal of 45660889 is 98806654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45427600 + 233289 = 6740^2 + 483^2 .

It is a cyclic number.

It is not a de Polignac number, because 45660889 - 2¹ = 45660887 is a prime.

Together with 45660887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45660887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22830444 + 22830445.

It is an arithmetic number, because the mean of its divisors is an integer number (22830445).

Almost surely, 2^45660889 is an apocalyptic number.

It is an amenable number.

45660889 is a deficient number, since it is larger than the sum of its proper divisors (1).

45660889 is an equidigital number, since it uses as much as digits as its factorization.

45660889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 45660889 is about 6757.2841437962. The cubic root of 45660889 is about 357.4221428902.

The spelling of 45660889 in words is "forty-five million, six hundred sixty thousand, eight hundred eighty-nine".