16612993 has 8 divisors (see below), whose sum is σ = 17256960. Its totient is φ = 15975840.

The previous prime is 16612987. The next prime is 16613021. The reversal of 16612993 is 39921661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16612993 - 2⁹ = 16612481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16612933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3573 + ... + 6781.

It is an arithmetic number, because the mean of its divisors is an integer number (2157120).

Almost surely, 2^16612993 is an apocalyptic number.

It is an amenable number.

16612993 is a deficient number, since it is larger than the sum of its proper divisors (643967).

16612993 is a wasteful number, since it uses less digits than its factorization.

16612993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407.

The product of its digits is 17496, while the sum is 37.

The square root of 16612993 is about 4075.9039488192. The cubic root of 16612993 is about 255.1619783389.

The spelling of 16612993 in words is "sixteen million, six hundred twelve thousand, nine hundred ninety-three".