2564087 has 8 divisors (see below), whose sum is σ = 2643840. Its totient is φ = 2485600.

The previous prime is 2564077. The next prime is 2564101. The reversal of 2564087 is 7804652.

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

It is a cyclic number.

It is not a de Polignac number, because 2564087 - 2⁴ = 2564071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5114 + ... + 5592.

It is an arithmetic number, because the mean of its divisors is an integer number (330480).

2^2564087 is an apocalyptic number.

2564087 is a deficient number, since it is larger than the sum of its proper divisors (79753).

2564087 is a wasteful number, since it uses less digits than its factorization.

2564087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2564087 is about 1601.2766781540. The cubic root of 2564087 is about 136.8708356913.

The spelling of 2564087 in words is "two million, five hundred sixty-four thousand, eighty-seven".