27964717 has 8 divisors (see below), whose sum is σ = 30553920. Its totient is φ = 25383360.

The previous prime is 27964693. The next prime is 27964723. The reversal of 27964717 is 71746972.

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 27964717 - 2⁷ = 27964589 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 (27964817) 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, 7509 + ... + 10597.

It is an arithmetic number, because the mean of its divisors is an integer number (3819240).

Almost surely, 2^27964717 is an apocalyptic number.

It is an amenable number.

27964717 is a deficient number, since it is larger than the sum of its proper divisors (2589203).

27964717 is a wasteful number, since it uses less digits than its factorization.

27964717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3923.

The product of its digits is 148176, while the sum is 43.

The square root of 27964717 is about 5288.1676410643. The cubic root of 27964717 is about 303.5312959937.

The spelling of 27964717 in words is "twenty-seven million, nine hundred sixty-four thousand, seven hundred seventeen".