45321689 has 8 divisors (see below), whose sum is σ = 51841920. Its totient is φ = 38812896.

The previous prime is 45321673. The next prime is 45321691. The reversal of 45321689 is 98612354.

It is a happy number.

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 45321689 - 2⁴ = 45321673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45321649) 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, 8837 + ... + 12989.

It is an arithmetic number, because the mean of its divisors is an integer number (6480240).

Almost surely, 2^45321689 is an apocalyptic number.

It is an amenable number.

45321689 is a deficient number, since it is larger than the sum of its proper divisors (6520231).

45321689 is a wasteful number, since it uses less digits than its factorization.

45321689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5719.

The product of its digits is 51840, while the sum is 38.

The square root of 45321689 is about 6732.1385161032. The cubic root of 45321689 is about 356.5348843025.

The spelling of 45321689 in words is "forty-five million, three hundred twenty-one thousand, six hundred eighty-nine".