1387673363 has 4 divisors (see below), whose sum is σ = 1388370240. Its totient is φ = 1386976488.

The previous prime is 1387673311. The next prime is 1387673369. The reversal of 1387673363 is 3633767831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1387673363 - 2¹⁶ = 1387607827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387673369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345443 + ... + 349436.

It is an arithmetic number, because the mean of its divisors is an integer number (347092560).

Almost surely, 2^1387673363 is an apocalyptic number.

1387673363 is a deficient number, since it is larger than the sum of its proper divisors (696877).

1387673363 is an equidigital number, since it uses as much as digits as its factorization.

1387673363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696876.

The product of its digits is 1143072, while the sum is 47.

The square root of 1387673363 is about 37251.4880642371. The cubic root of 1387673363 is about 1115.3960032388.

The spelling of 1387673363 in words is "one billion, three hundred eighty-seven million, six hundred seventy-three thousand, three hundred sixty-three".