3731312747 has 4 divisors (see below), whose sum is σ = 3893543760. Its totient is φ = 3569081736.

The previous prime is 3731312713. The next prime is 3731312749. The reversal of 3731312747 is 7472131373.

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

It is a cyclic number.

It is not a de Polignac number, because 3731312747 - 2⁸ = 3731312491 is a prime.

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 3731312747.

It is not an unprimeable number, because it can be changed into a prime (3731312749) 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, 81115472 + ... + 81115517.

It is an arithmetic number, because the mean of its divisors is an integer number (973385940).

Almost surely, 2^3731312747 is an apocalyptic number.

3731312747 is a deficient number, since it is larger than the sum of its proper divisors (162231013).

3731312747 is a wasteful number, since it uses less digits than its factorization.

3731312747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162231012.

The product of its digits is 74088, while the sum is 38.

The square root of 3731312747 is about 61084.4722249444. The cubic root of 3731312747 is about 1551.0312591952.

The spelling of 3731312747 in words is "three billion, seven hundred thirty-one million, three hundred twelve thousand, seven hundred forty-seven".