45873991 has 8 divisors (see below), whose sum is σ = 47828880. Its totient is φ = 43959552.

The previous prime is 45873959. The next prime is 45874001. The reversal of 45873991 is 19937854.

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 45873991 - 2⁵ = 45873959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45873931) 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, 7786 + ... + 12343.

It is an arithmetic number, because the mean of its divisors is an integer number (5978610).

Almost surely, 2^45873991 is an apocalyptic number.

45873991 is a deficient number, since it is larger than the sum of its proper divisors (1954889).

45873991 is a wasteful number, since it uses less digits than its factorization.

45873991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20225.

The product of its digits is 272160, while the sum is 46.

The square root of 45873991 is about 6773.0341059233. The cubic root of 45873991 is about 357.9773166864.

It can be divided in two parts, 45873 and 991, that added together give a palindrome (46864).

The spelling of 45873991 in words is "forty-five million, eight hundred seventy-three thousand, nine hundred ninety-one".