45644773 has 4 divisors (see below), whose sum is σ = 45687628. Its totient is φ = 45601920.

The previous prime is 45644749. The next prime is 45644789. The reversal of 45644773 is 37744654.

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 20223009 + 25421764 = 4497^2 + 5042^2 .

It is a cyclic number.

It is not a de Polignac number, because 45644773 - 2¹⁷ = 45513701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45644743) 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, 19788 + ... + 21973.

It is an arithmetic number, because the mean of its divisors is an integer number (11421907).

Almost surely, 2^45644773 is an apocalyptic number.

It is an amenable number.

45644773 is a deficient number, since it is larger than the sum of its proper divisors (42855).

45644773 is a wasteful number, since it uses less digits than its factorization.

45644773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42854.

The product of its digits is 282240, while the sum is 40.

The square root of 45644773 is about 6756.0915476331. The cubic root of 45644773 is about 357.3800872549.

The spelling of 45644773 in words is "forty-five million, six hundred forty-four thousand, seven hundred seventy-three".