3991760539 has 8 divisors (see below), whose sum is σ = 4437491072. Its totient is φ = 3565840320.

The previous prime is 3991760467. The next prime is 3991760557. The reversal of 3991760539 is 9350671993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3991760539 - 2¹⁵ = 3991727771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3991760579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4952154 + ... + 4952959.

It is an arithmetic number, because the mean of its divisors is an integer number (554686384).

Almost surely, 2^3991760539 is an apocalyptic number.

3991760539 is a deficient number, since it is larger than the sum of its proper divisors (445730533).

3991760539 is a wasteful number, since it uses less digits than its factorization.

3991760539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9905157.

The product of its (nonzero) digits is 1377810, while the sum is 52.

The square root of 3991760539 is about 63180.3809659296. The cubic root of 3991760539 is about 1586.3103586430.

The spelling of 3991760539 in words is "three billion, nine hundred ninety-one million, seven hundred sixty thousand, five hundred thirty-nine".