45866721 has 8 divisors (see below), whose sum is σ = 61356064. Its totient is φ = 30477600.

The previous prime is 45866699. The next prime is 45866747. The reversal of 45866721 is 12766854.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45866721 - 2⁶ = 45866657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45866721.

It is not an unprimeable number, because it can be changed into a prime (45866021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23980 + ... + 25821.

It is an arithmetic number, because the mean of its divisors is an integer number (7669508).

Almost surely, 2^45866721 is an apocalyptic number.

It is an amenable number.

45866721 is a deficient number, since it is larger than the sum of its proper divisors (15489343).

45866721 is a wasteful number, since it uses less digits than its factorization.

45866721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50111.

The product of its digits is 80640, while the sum is 39.

The square root of 45866721 is about 6772.4973975632. The cubic root of 45866721 is about 357.9584052254.

The spelling of 45866721 in words is "forty-five million, eight hundred sixty-six thousand, seven hundred twenty-one".