2671564 has 12 divisors (see below), whose sum is σ = 5343184. Its totient is φ = 1144944.

The previous prime is 2671561. The next prime is 2671573. The reversal of 2671564 is 4651762.

It is a happy number.

2671564 is an admirable number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2671561) 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, 47679 + ... + 47734.

2^2671564 is an apocalyptic number.

It is an amenable number.

2671564 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.

2671564 is a wasteful number, since it uses less digits than its factorization.

2671564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95424 (or 95422 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 2671564 is about 1634.4919700017. The cubic root of 2671564 is about 138.7570934880.

The spelling of 2671564 in words is "two million, six hundred seventy-one thousand, five hundred sixty-four".