2564673 has 16 divisors (see below), whose sum is σ = 3628800. Its totient is φ = 1608320.

The previous prime is 2564669. The next prime is 2564701. The reversal of 2564673 is 3764652.

It is a cyclic number.

It is not a de Polignac number, because 2564673 - 2² = 2564669 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2²¹ + 5 + 6⁵ + 4⁴ + 6⁷ + 7⁴ + 3¹¹ .

It is not an unprimeable number, because it can be changed into a prime (2564633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3208 + ... + 3926.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

2^2564673 is an apocalyptic number.

It is an amenable number.

2564673 is a deficient number, since it is larger than the sum of its proper divisors (1064127).

2564673 is a wasteful number, since it uses less digits than its factorization.

2564673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792.

The product of its digits is 30240, while the sum is 33.

The square root of 2564673 is about 1601.4596466973. The cubic root of 2564673 is about 136.8812617806.

The spelling of 2564673 in words is "two million, five hundred sixty-four thousand, six hundred seventy-three".