45098989 has 8 divisors (see below), whose sum is σ = 51124640. Its totient is φ = 39438576.

The previous prime is 45098971. The next prime is 45098993. The reversal of 45098989 is 98989054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45098989 - 2⁵ = 45098957 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45098969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91047 + ... + 91540.

It is an arithmetic number, because the mean of its divisors is an integer number (6390580).

Almost surely, 2^45098989 is an apocalyptic number.

It is an amenable number.

45098989 is a deficient number, since it is larger than the sum of its proper divisors (6025651).

45098989 is a wasteful number, since it uses less digits than its factorization.

45098989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182619.

The product of its (nonzero) digits is 933120, while the sum is 52.

The square root of 45098989 is about 6715.5780838287. The cubic root of 45098989 is about 355.9499493033.

The spelling of 45098989 in words is "forty-five million, ninety-eight thousand, nine hundred eighty-nine".