2981564 has 6 divisors (see below), whose sum is σ = 5217744. Its totient is φ = 1490780.

The previous prime is 2981551. The next prime is 2981569. The reversal of 2981564 is 4651892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2981569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372692 + ... + 372699.

It is an arithmetic number, because the mean of its divisors is an integer number (869624).

2^2981564 is an apocalyptic number.

It is an amenable number.

2981564 is a deficient number, since it is larger than the sum of its proper divisors (2236180).

2981564 is a wasteful number, since it uses less digits than its factorization.

2981564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745395 (or 745393 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 2981564 is about 1726.7205911785. The cubic root of 2981564 is about 143.9289129582.

The spelling of 2981564 in words is "two million, nine hundred eighty-one thousand, five hundred sixty-four".