15664094 has 8 divisors (see below), whose sum is σ = 24732840. Its totient is φ = 7419816.

The previous prime is 15664093. The next prime is 15664133. The reversal of 15664094 is 49046651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15664093) 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, 206069 + ... + 206144.

It is an arithmetic number, because the mean of its divisors is an integer number (3091605).

Almost surely, 2^15664094 is an apocalyptic number.

15664094 is a deficient number, since it is larger than the sum of its proper divisors (9068746).

15664094 is a wasteful number, since it uses less digits than its factorization.

15664094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412234.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 15664094 is about 3957.7890292435. The cubic root of 15664094 is about 250.2083276834.

The spelling of 15664094 in words is "fifteen million, six hundred sixty-four thousand, ninety-four".