16630879 has 4 divisors (see below), whose sum is σ = 17609184. Its totient is φ = 15652576.

The previous prime is 16630847. The next prime is 16630883. The reversal of 16630879 is 97803661.

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 16630879 - 2⁵ = 16630847 is a prime.

It is a super-2 number, since 2×16630879² = 553172272625282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16630819) 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, 489127 + ... + 489160.

It is an arithmetic number, because the mean of its divisors is an integer number (4402296).

Almost surely, 2^16630879 is an apocalyptic number.

16630879 is a deficient number, since it is larger than the sum of its proper divisors (978305).

16630879 is an equidigital number, since it uses as much as digits as its factorization.

16630879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978304.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 16630879 is about 4078.0974730872. The cubic root of 16630879 is about 255.2535169372.

The spelling of 16630879 in words is "sixteen million, six hundred thirty thousand, eight hundred seventy-nine".