45693991 has 8 divisors (see below), whose sum is σ = 52267040. Its totient is φ = 39132288.

The previous prime is 45693983. The next prime is 45693997. The reversal of 45693991 is 19939654.

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 45693991 - 2³ = 45693983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45693997) 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, 9235 + ... + 13291.

It is an arithmetic number, because the mean of its divisors is an integer number (6533380).

Almost surely, 2^45693991 is an apocalyptic number.

45693991 is a deficient number, since it is larger than the sum of its proper divisors (6573049).

45693991 is a wasteful number, since it uses less digits than its factorization.

45693991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5673.

The product of its digits is 262440, while the sum is 46.

The square root of 45693991 is about 6759.7330568596. The cubic root of 45693991 is about 357.5084934491.

The spelling of 45693991 in words is "forty-five million, six hundred ninety-three thousand, nine hundred ninety-one".