863749379 has 4 divisors (see below), whose sum is σ = 914558184. Its totient is φ = 812940576.

The previous prime is 863749363. The next prime is 863749441. The reversal of 863749379 is 973947368.

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 863749379 - 2⁴ = 863749363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (863749339) 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, 25404377 + ... + 25404410.

It is an arithmetic number, because the mean of its divisors is an integer number (228639546).

Almost surely, 2^863749379 is an apocalyptic number.

863749379 is a deficient number, since it is larger than the sum of its proper divisors (50808805).

863749379 is a wasteful number, since it uses less digits than its factorization.

863749379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50808804.

The product of its digits is 6858432, while the sum is 56.

The square root of 863749379 is about 29389.6134544162. The cubic root of 863749379 is about 952.3485305994.

The spelling of 863749379 in words is "eight hundred sixty-three million, seven hundred forty-nine thousand, three hundred seventy-nine".