27964065 has 16 divisors (see below), whose sum is σ = 47374848. Its totient is φ = 14036736.

The previous prime is 27964051. The next prime is 27964073. The reversal of 27964065 is 56046972.

It is not a de Polignac number, because 27964065 - 2⁴ = 27964049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54577 + ... + 55086.

It is an arithmetic number, because the mean of its divisors is an integer number (2960928).

Almost surely, 2^27964065 is an apocalyptic number.

It is an amenable number.

27964065 is a deficient number, since it is larger than the sum of its proper divisors (19410783).

27964065 is a wasteful number, since it uses less digits than its factorization.

27964065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109688.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 27964065 is about 5288.1059936427. The cubic root of 27964065 is about 303.5289370218.

The spelling of 27964065 in words is "twenty-seven million, nine hundred sixty-four thousand, sixty-five".