45663997 has 4 divisors (see below), whose sum is σ = 45767520. Its totient is φ = 45560476.

The previous prime is 45663991. The next prime is 45664007. The reversal of 45663997 is 79936654.

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 a de Polignac number, because none of the positive numbers 2^k-45663997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45663997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45663991) 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, 51097 + ... + 51982.

It is an arithmetic number, because the mean of its divisors is an integer number (11441880).

Almost surely, 2^45663997 is an apocalyptic number.

It is an amenable number.

45663997 is a deficient number, since it is larger than the sum of its proper divisors (103523).

45663997 is a wasteful number, since it uses less digits than its factorization.

45663997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103522.

The product of its digits is 1224720, while the sum is 49.

The square root of 45663997 is about 6757.5141139327. The cubic root of 45663997 is about 357.4302522579.

The spelling of 45663997 in words is "forty-five million, six hundred sixty-three thousand, nine hundred ninety-seven".