27320646 has 8 divisors (see below), whose sum is σ = 54641304. Its totient is φ = 9106880.

The previous prime is 27320633. The next prime is 27320653. The reversal of 27320646 is 64602372.

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

27320646 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276715 + ... + 2276726.

It is an arithmetic number, because the mean of its divisors is an integer number (6830163).

Almost surely, 2^27320646 is an apocalyptic number.

27320646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27320646 is a wasteful number, since it uses less digits than its factorization.

27320646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4553446.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 27320646 is about 5226.9155340411. The cubic root of 27320646 is about 301.1829074142.

It can be divided in two parts, 27320 and 646, that added together give a triangular number (27966 = T₂₃₆).

The spelling of 27320646 in words is "twenty-seven million, three hundred twenty thousand, six hundred forty-six".