16648379 has 4 divisors (see below), whose sum is σ = 18161880. Its totient is φ = 15134880.

The previous prime is 16648369. The next prime is 16648391. The reversal of 16648379 is 97384661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97384661 = 11 ⋅8853151.

It is a cyclic number.

It is not a de Polignac number, because 16648379 - 2⁴ = 16648363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16648319) 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, 756734 + ... + 756755.

It is an arithmetic number, because the mean of its divisors is an integer number (4540470).

Almost surely, 2^16648379 is an apocalyptic number.

16648379 is a deficient number, since it is larger than the sum of its proper divisors (1513501).

16648379 is a wasteful number, since it uses less digits than its factorization.

16648379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513500.

The product of its digits is 217728, while the sum is 44.

The square root of 16648379 is about 4080.2425173021. The cubic root of 16648379 is about 255.3430165294.

The spelling of 16648379 in words is "sixteen million, six hundred forty-eight thousand, three hundred seventy-nine".