3747431685 has 16 divisors (see below), whose sum is σ = 6026025600. Its totient is φ = 1988585280.

The previous prime is 3747431641. The next prime is 3747431717. The reversal of 3747431685 is 5861347473.

It is not a de Polignac number, because 3747431685 - 2⁹ = 3747431173 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624726 + ... + 630695.

It is an arithmetic number, because the mean of its divisors is an integer number (376626600).

Almost surely, 2^3747431685 is an apocalyptic number.

It is an amenable number.

3747431685 is a deficient number, since it is larger than the sum of its proper divisors (2278593915).

3747431685 is a wasteful number, since it uses less digits than its factorization.

3747431685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255628.

The product of its digits is 1693440, while the sum is 48.

The square root of 3747431685 is about 61216.2697736476. The cubic root of 3747431685 is about 1553.2614896694.

The spelling of 3747431685 in words is "three billion, seven hundred forty-seven million, four hundred thirty-one thousand, six hundred eighty-five".