1376664017 has 6 divisors (see below), whose sum is σ = 1425772998. Its totient is φ = 1329192032.

The previous prime is 1376664007. The next prime is 1376664031. The reversal of 1376664017 is 7104666731.

It can be written as a sum of positive squares in 3 ways, for example, as 405780736 + 970883281 = 20144^2 + 31159^2 .

It is not a de Polignac number, because 1376664017 - 2⁴ = 1376664001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1376664007) 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, 817628 + ... + 819309.

It is an arithmetic number, because the mean of its divisors is an integer number (237628833).

Almost surely, 2^1376664017 is an apocalyptic number.

It is an amenable number.

1376664017 is a deficient number, since it is larger than the sum of its proper divisors (49108981).

1376664017 is an equidigital number, since it uses as much as digits as its factorization.

1376664017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636995 (or 1636966 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 1376664017 is about 37103.4232517702. The cubic root of 1376664017 is about 1112.4384390798.

The spelling of 1376664017 in words is "one billion, three hundred seventy-six million, six hundred sixty-four thousand, seventeen".