16804961 has 4 divisors (see below), whose sum is σ = 16926000. Its totient is φ = 16683924.

The previous prime is 16804939. The next prime is 16804969. The reversal of 16804961 is 16940861.

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: 16940861 = 7 ⋅2420123.

It is a cyclic number.

It is not a de Polignac number, because 16804961 - 2¹⁰ = 16803937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16804969) 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, 60311 + ... + 60588.

It is an arithmetic number, because the mean of its divisors is an integer number (4231500).

Almost surely, 2^16804961 is an apocalyptic number.

It is an amenable number.

16804961 is a deficient number, since it is larger than the sum of its proper divisors (121039).

16804961 is a wasteful number, since it uses less digits than its factorization.

16804961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121038.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 16804961 is about 4099.3854417461. The cubic root of 16804961 is about 256.1410406483.

The spelling of 16804961 in words is "sixteen million, eight hundred four thousand, nine hundred sixty-one".