45942889 has 2 divisors, whose sum is σ = 45942890. Its totient is φ = 45942888.

The previous prime is 45942847. The next prime is 45942917. The reversal of 45942889 is 98824954.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35105625 + 10837264 = 5925^2 + 3292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45942889 is a prime.

It is a super-2 number, since 2×45942889² = 4221498099332642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45942289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22971444 + 22971445.

It is an arithmetic number, because the mean of its divisors is an integer number (22971445).

Almost surely, 2^45942889 is an apocalyptic number.

It is an amenable number.

45942889 is a deficient number, since it is larger than the sum of its proper divisors (1).

45942889 is an equidigital number, since it uses as much as digits as its factorization.

45942889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 49.

The square root of 45942889 is about 6778.1183967234. The cubic root of 45942889 is about 358.1564420351.

The spelling of 45942889 in words is "forty-five million, nine hundred forty-two thousand, eight hundred eighty-nine".