45687673 has 4 divisors (see below), whose sum is σ = 47263140. Its totient is φ = 44112208.

The previous prime is 45687641. The next prime is 45687689. The reversal of 45687673 is 37678654.

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 31270464 + 14417209 = 5592^2 + 3797^2 .

It is a cyclic number.

It is not a de Polignac number, because 45687673 - 2⁵ = 45687641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45687613) 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, 787690 + ... + 787747.

It is an arithmetic number, because the mean of its divisors is an integer number (11815785).

Almost surely, 2^45687673 is an apocalyptic number.

It is an amenable number.

45687673 is a deficient number, since it is larger than the sum of its proper divisors (1575467).

45687673 is a wasteful number, since it uses less digits than its factorization.

45687673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575466.

The product of its digits is 846720, while the sum is 46.

The square root of 45687673 is about 6759.2657145581. The cubic root of 45687673 is about 357.4920154052.

It can be divided in two parts, 45687 and 673, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 45687673 in words is "forty-five million, six hundred eighty-seven thousand, six hundred seventy-three".