16693261 has 8 divisors (see below), whose sum is σ = 18120704. Its totient is φ = 15286320.

The previous prime is 16693249. The next prime is 16693277. The reversal of 16693261 is 16239661.

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 16693261 - 2¹³ = 16685069 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 (16693231) 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, 3405 + ... + 6706.

It is an arithmetic number, because the mean of its divisors is an integer number (2265088).

Almost surely, 2^16693261 is an apocalyptic number.

It is an amenable number.

16693261 is a deficient number, since it is larger than the sum of its proper divisors (1427443).

16693261 is a wasteful number, since it uses less digits than its factorization.

16693261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10251.

The product of its digits is 11664, while the sum is 34.

The square root of 16693261 is about 4085.7387336931. The cubic root of 16693261 is about 255.5722685212.

The spelling of 16693261 in words is "sixteen million, six hundred ninety-three thousand, two hundred sixty-one".