2576661 has 8 divisors (see below), whose sum is σ = 3484224. Its totient is φ = 1693440.

The previous prime is 2576653. The next prime is 2576663. The reversal of 2576661 is 1666752.

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

It is not a de Polignac number, because 2576661 - 2³ = 2576653 is a prime.

2576661 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2576663) 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, 5836 + ... + 6261.

It is an arithmetic number, because the mean of its divisors is an integer number (435528).

2^2576661 is an apocalyptic number.

It is an amenable number.

2576661 is a deficient number, since it is larger than the sum of its proper divisors (907563).

2576661 is a wasteful number, since it uses less digits than its factorization.

2576661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12171.

The product of its digits is 15120, while the sum is 33.

The square root of 2576661 is about 1605.1981186134. The cubic root of 2576661 is about 137.0942041270.

Subtracting from 2576661 its reverse (1666752), we obtain a palindrome (909909).

The spelling of 2576661 in words is "two million, five hundred seventy-six thousand, six hundred sixty-one".