16730949 has 4 divisors (see below), whose sum is σ = 22307936. Its totient is φ = 11153964.

The previous prime is 16730947. The next prime is 16730983. The reversal of 16730949 is 94903761.

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 16730949 - 2¹ = 16730947 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 (16730947) 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, 2788489 + ... + 2788494.

It is an arithmetic number, because the mean of its divisors is an integer number (5576984).

Almost surely, 2^16730949 is an apocalyptic number.

It is an amenable number.

16730949 is a deficient number, since it is larger than the sum of its proper divisors (5576987).

16730949 is an equidigital number, since it uses as much as digits as its factorization.

16730949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576986.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 16730949 is about 4090.3482736804. The cubic root of 16730949 is about 255.7644572150.

The spelling of 16730949 in words is "sixteen million, seven hundred thirty thousand, nine hundred forty-nine".