45666393 has 4 divisors (see below), whose sum is σ = 60888528. Its totient is φ = 30444260.

The previous prime is 45666377. The next prime is 45666421. The reversal of 45666393 is 39366654.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45666393 - 2⁴ = 45666377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45666323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7611063 + ... + 7611068.

It is an arithmetic number, because the mean of its divisors is an integer number (15222132).

Almost surely, 2^45666393 is an apocalyptic number.

It is an amenable number.

45666393 is a deficient number, since it is larger than the sum of its proper divisors (15222135).

45666393 is a wasteful number, since it uses less digits than its factorization.

45666393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15222134.

The product of its digits is 349920, while the sum is 42.

The square root of 45666393 is about 6757.6913957357. The cubic root of 45666393 is about 357.4365036299.

The spelling of 45666393 in words is "forty-five million, six hundred sixty-six thousand, three hundred ninety-three".