45093993 has 16 divisors (see below), whose sum is σ = 69022080. Its totient is φ = 25652736.

The previous prime is 45093977. The next prime is 45094001. The reversal of 45093993 is 39939054.

It is a happy number.

It is not a de Polignac number, because 45093993 - 2⁴ = 45093977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45093913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121 + ... + 9497.

It is an arithmetic number, because the mean of its divisors is an integer number (4313880).

Almost surely, 2^45093993 is an apocalyptic number.

It is an amenable number.

45093993 is a deficient number, since it is larger than the sum of its proper divisors (23928087).

45093993 is a wasteful number, since it uses less digits than its factorization.

45093993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9616.

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 45093993 is about 6715.2061025705. The cubic root of 45093993 is about 355.9368049464.

The spelling of 45093993 in words is "forty-five million, ninety-three thousand, nine hundred ninety-three".