16461617 has 4 divisors (see below), whose sum is σ = 16473600. Its totient is φ = 16449636.

The previous prime is 16461547. The next prime is 16461659. The reversal of 16461617 is 71616461.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16461617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16461667) 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, 3617 + ... + 6782.

It is an arithmetic number, because the mean of its divisors is an integer number (4118400).

Almost surely, 2^16461617 is an apocalyptic number.

It is an amenable number.

16461617 is a deficient number, since it is larger than the sum of its proper divisors (11983).

16461617 is a wasteful number, since it uses less digits than its factorization.

16461617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11982.

The product of its digits is 6048, while the sum is 32.

The square root of 16461617 is about 4057.2918307659. The cubic root of 16461617 is about 254.3846085994.

The spelling of 16461617 in words is "sixteen million, four hundred sixty-one thousand, six hundred seventeen".