16812379 has 4 divisors (see below), whose sum is σ = 17543376. Its totient is φ = 16081384.

The previous prime is 16812361. The next prime is 16812403. The reversal of 16812379 is 97321861.

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 16812379 - 2⁷ = 16812251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16812979) 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, 365464 + ... + 365509.

It is an arithmetic number, because the mean of its divisors is an integer number (4385844).

Almost surely, 2^16812379 is an apocalyptic number.

16812379 is a deficient number, since it is larger than the sum of its proper divisors (730997).

16812379 is an equidigital number, since it uses as much as digits as its factorization.

16812379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730996.

The product of its digits is 18144, while the sum is 37.

The square root of 16812379 is about 4100.2901116872. The cubic root of 16812379 is about 256.1787234638.

The spelling of 16812379 in words is "sixteen million, eight hundred twelve thousand, three hundred seventy-nine".