3706574645 has 4 divisors (see below), whose sum is σ = 4447889580. Its totient is φ = 2965259712.

The previous prime is 3706574623. The next prime is 3706574657. The reversal of 3706574645 is 5464756073.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5464756073 = 7 ⋅780679439.

It can be written as a sum of positive squares in 2 ways, for example, as 790790641 + 2915784004 = 28121^2 + 53998^2 .

It is a cyclic number.

It is not a de Polignac number, because 3706574645 - 2⁶ = 3706574581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3706574645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370657460 + ... + 370657469.

It is an arithmetic number, because the mean of its divisors is an integer number (1111972395).

Almost surely, 2^3706574645 is an apocalyptic number.

It is an amenable number.

3706574645 is a deficient number, since it is larger than the sum of its proper divisors (741314935).

3706574645 is an equidigital number, since it uses as much as digits as its factorization.

3706574645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741314934.

The product of its (nonzero) digits is 2116800, while the sum is 47.

The square root of 3706574645 is about 60881.6445655010. The cubic root of 3706574645 is about 1547.5959464923.

The spelling of 3706574645 in words is "three billion, seven hundred six million, five hundred seventy-four thousand, six hundred forty-five".