3127697920 has 80 divisors (see below), whose sum is σ = 7893959040. Its totient is φ = 1185214464.

The previous prime is 3127697891. The next prime is 3127697971. The reversal of 3127697920 is 297967213.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16489 + ... + 80791.

It is an arithmetic number, because the mean of its divisors is an integer number (98674488).

Almost surely, 2^3127697920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3127697920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3946979520).

3127697920 is an abundant number, since it is smaller than the sum of its proper divisors (4766261120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3127697920 is an equidigital number, since it uses as much as digits as its factorization.

3127697920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64345 (or 64329 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 3127697920 is about 55925.8251615477. The cubic root of 3127697920 is about 1462.4294822696.

The spelling of 3127697920 in words is "three billion, one hundred twenty-seven million, six hundred ninety-seven thousand, nine hundred twenty".