16612489 has 4 divisors (see below), whose sum is σ = 16743424. Its totient is φ = 16481556.

The previous prime is 16612481. The next prime is 16612501. The reversal of 16612489 is 98421661.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98421661 = 13 ⋅7570897.

It is a cyclic number.

It is not a de Polignac number, because 16612489 - 2³ = 16612481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16612481) 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, 65277 + ... + 65530.

It is an arithmetic number, because the mean of its divisors is an integer number (4185856).

Almost surely, 2^16612489 is an apocalyptic number.

It is an amenable number.

16612489 is a deficient number, since it is larger than the sum of its proper divisors (130935).

16612489 is a wasteful number, since it uses less digits than its factorization.

16612489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130934.

The product of its digits is 20736, while the sum is 37.

The square root of 16612489 is about 4075.8421215744. The cubic root of 16612489 is about 255.1593979703.

The spelling of 16612489 in words is "sixteen million, six hundred twelve thousand, four hundred eighty-nine".