45658989 has 6 divisors (see below), whose sum is σ = 65951886. Its totient is φ = 30439320.

The previous prime is 45658981. The next prime is 45658993. The reversal of 45658989 is 98985654.

It is a happy number.

45658989 is a `hidden beast` number, since 4 + 56 + 589 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25704900 + 19954089 = 5070^2 + 4467^2 .

It is not a de Polignac number, because 45658989 - 2³ = 45658981 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45658981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2536602 + ... + 2536619.

It is an arithmetic number, because the mean of its divisors is an integer number (10991981).

Almost surely, 2^45658989 is an apocalyptic number.

It is an amenable number.

45658989 is a deficient number, since it is larger than the sum of its proper divisors (20292897).

45658989 is a wasteful number, since it uses less digits than its factorization.

45658989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073227 (or 5073224 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 45658989 is about 6757.1435533071. The cubic root of 45658989 is about 357.4171852447.

The spelling of 45658989 in words is "forty-five million, six hundred fifty-eight thousand, nine hundred eighty-nine".