16083691 has 4 divisors (see below), whose sum is σ = 17320912. Its totient is φ = 14846472.

The previous prime is 16083659. The next prime is 16083707. The reversal of 16083691 is 19638061.

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

It is a cyclic number.

It is not a de Polignac number, because 16083691 - 2⁵ = 16083659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16083611) 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, 618591 + ... + 618616.

It is an arithmetic number, because the mean of its divisors is an integer number (4330228).

Almost surely, 2^16083691 is an apocalyptic number.

16083691 is a deficient number, since it is larger than the sum of its proper divisors (1237221).

16083691 is a wasteful number, since it uses less digits than its factorization.

16083691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237220.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 16083691 is about 4010.4477306156. The cubic root of 16083691 is about 252.4227963818.

The spelling of 16083691 in words is "sixteen million, eighty-three thousand, six hundred ninety-one".