1373670663 has 16 divisors (see below), whose sum is σ = 1843709952. Its totient is φ = 909720000.

The previous prime is 1373670619. The next prime is 1373670679. The reversal of 1373670663 is 3660763731.

It is not a de Polignac number, because 1373670663 - 2²⁶ = 1306561799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373670763) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 601083 + ... + 603363.

It is an arithmetic number, because the mean of its divisors is an integer number (115231872).

Almost surely, 2^1373670663 is an apocalyptic number.

1373670663 is a deficient number, since it is larger than the sum of its proper divisors (470039289).

1373670663 is a wasteful number, since it uses less digits than its factorization.

1373670663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526.

The product of its (nonzero) digits is 285768, while the sum is 42.

The square root of 1373670663 is about 37063.0633245554. The cubic root of 1373670663 is about 1111.6315759174.

The spelling of 1373670663 in words is "one billion, three hundred seventy-three million, six hundred seventy thousand, six hundred sixty-three".