2906564 has 6 divisors (see below), whose sum is σ = 5086494. Its totient is φ = 1453280.

The previous prime is 2906549. The next prime is 2906567. The reversal of 2906564 is 4656092.

It can be written as a sum of positive squares in only one way, i.e., 2534464 + 372100 = 1592^2 + 610^2 .

It is a super-2 number, since 2×2906564² = 16896228572192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2906564.

It is not an unprimeable number, because it can be changed into a prime (2906567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363317 + ... + 363324.

It is an arithmetic number, because the mean of its divisors is an integer number (847749).

2^2906564 is an apocalyptic number.

It is an amenable number.

2906564 is a deficient number, since it is larger than the sum of its proper divisors (2179930).

2906564 is a wasteful number, since it uses less digits than its factorization.

2906564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726645 (or 726643 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2906564 is about 1704.8648040241. The cubic root of 2906564 is about 142.7118261362.

The spelling of 2906564 in words is "two million, nine hundred six thousand, five hundred sixty-four".