16630313 has 4 divisors (see below), whose sum is σ = 19006080. Its totient is φ = 14254548.

The previous prime is 16630309. The next prime is 16630321. The reversal of 16630313 is 31303661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31303661 = 163 ⋅192047.

It is not a de Polignac number, because 16630313 - 2² = 16630309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16630303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1187873 + ... + 1187886.

It is an arithmetic number, because the mean of its divisors is an integer number (4751520).

Almost surely, 2^16630313 is an apocalyptic number.

It is an amenable number.

16630313 is a deficient number, since it is larger than the sum of its proper divisors (2375767).

16630313 is an equidigital number, since it uses as much as digits as its factorization.

16630313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375766.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 16630313 is about 4078.0280773923. The cubic root of 16630313 is about 255.2506212167.

Adding to 16630313 its reverse (31303661), we get a palindrome (47933974).

The spelling of 16630313 in words is "sixteen million, six hundred thirty thousand, three hundred thirteen".