1927797713 has 6 divisors (see below), whose sum is σ = 1991991762. Its totient is φ = 1865609760.

The previous prime is 1927797689. The next prime is 1927797769. The reversal of 1927797713 is 3177977291.

It can be written as a sum of positive squares in only one way, i.e., 1135487809 + 792309904 = 33697^2 + 28148^2 .

It is not a de Polignac number, because 1927797713 - 2¹⁴ = 1927781329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1927797793) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1002056 + ... + 1003977.

It is an arithmetic number, because the mean of its divisors is an integer number (331998627).

Almost surely, 2^1927797713 is an apocalyptic number.

It is an amenable number.

1927797713 is a deficient number, since it is larger than the sum of its proper divisors (64194049).

1927797713 is an equidigital number, since it uses as much as digits as its factorization.

1927797713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006095 (or 2006064 counting only the distinct ones).

The product of its digits is 1166886, while the sum is 53.

The square root of 1927797713 is about 43906.6932596842. The cubic root of 1927797713 is about 1244.5733204520.

The spelling of 1927797713 in words is "one billion, nine hundred twenty-seven million, seven hundred ninety-seven thousand, seven hundred thirteen".