45638617 has 4 divisors (see below), whose sum is σ = 46751796. Its totient is φ = 44525440.

The previous prime is 45638599. The next prime is 45638623. The reversal of 45638617 is 71683654.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18139081 + 27499536 = 4259^2 + 5244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45638617 is a prime.

It is a super-3 number, since 3×45638617³ (a number of 24 digits) contains 333 as substring.

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 45638617.

It is not an unprimeable number, because it can be changed into a prime (45638657) 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, 556528 + ... + 556609.

It is an arithmetic number, because the mean of its divisors is an integer number (11687949).

Almost surely, 2^45638617 is an apocalyptic number.

It is an amenable number.

45638617 is a deficient number, since it is larger than the sum of its proper divisors (1113179).

45638617 is a wasteful number, since it uses less digits than its factorization.

45638617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113178.

The product of its digits is 120960, while the sum is 40.

The square root of 45638617 is about 6755.6359434179. The cubic root of 45638617 is about 357.3640202036.

The spelling of 45638617 in words is "forty-five million, six hundred thirty-eight thousand, six hundred seventeen".