16630493 has 4 divisors (see below), whose sum is σ = 18142368. Its totient is φ = 15118620.

The previous prime is 16630489. The next prime is 16630513. The reversal of 16630493 is 39403661.

It is a happy number.

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.

It is not a de Polignac number, because 16630493 - 2² = 16630489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16630463) 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, 755921 + ... + 755942.

It is an arithmetic number, because the mean of its divisors is an integer number (4535592).

Almost surely, 2^16630493 is an apocalyptic number.

It is an amenable number.

16630493 is a deficient number, since it is larger than the sum of its proper divisors (1511875).

16630493 is a wasteful number, since it uses less digits than its factorization.

16630493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511874.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 16630493 is about 4078.0501468226. The cubic root of 16630493 is about 255.2515421243.

The spelling of 16630493 in words is "sixteen million, six hundred thirty thousand, four hundred ninety-three".