16946261 has 4 divisors (see below), whose sum is σ = 16967724. Its totient is φ = 16924800.

The previous prime is 16946249. The next prime is 16946269. The reversal of 16946261 is 16264961.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3587236 + 13359025 = 1894^2 + 3655^2 .

It is a cyclic number.

It is not a de Polignac number, because 16946261 - 2⁶ = 16946197 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 (16946269) 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, 9500 + ... + 11141.

It is an arithmetic number, because the mean of its divisors is an integer number (4241931).

Almost surely, 2^16946261 is an apocalyptic number.

It is an amenable number.

16946261 is a deficient number, since it is larger than the sum of its proper divisors (21463).

16946261 is an equidigital number, since it uses as much as digits as its factorization.

16946261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21462.

The product of its digits is 15552, while the sum is 35.

The square root of 16946261 is about 4116.5836563830. The cubic root of 16946261 is about 256.8569356213.

The spelling of 16946261 in words is "sixteen million, nine hundred forty-six thousand, two hundred sixty-one".