16920379 has 8 divisors (see below), whose sum is σ = 19365120. Its totient is φ = 14482536.

The previous prime is 16920347. The next prime is 16920383. The reversal of 16920379 is 97302961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16920379 - 2⁵ = 16920347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16920679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5652 + ... + 8110.

It is an arithmetic number, because the mean of its divisors is an integer number (2420640).

Almost surely, 2^16920379 is an apocalyptic number.

16920379 is a deficient number, since it is larger than the sum of its proper divisors (2444741).

16920379 is an equidigital number, since it uses as much as digits as its factorization.

16920379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 16920379 is about 4113.4388290091. The cubic root of 16920379 is about 256.7261032494.

The spelling of 16920379 in words is "sixteen million, nine hundred twenty thousand, three hundred seventy-nine".