2610661 has 8 divisors (see below), whose sum is σ = 2741760. Its totient is φ = 2481072.

The previous prime is 2610653. The next prime is 2610677. The reversal of 2610661 is 1660162.

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 2610661 - 2³ = 2610653 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 (2610611) 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, 4875 + ... + 5383.

It is an arithmetic number, because the mean of its divisors is an integer number (342720).

2^2610661 is an apocalyptic number.

It is an amenable number.

2610661 is a deficient number, since it is larger than the sum of its proper divisors (131099).

2610661 is a wasteful number, since it uses less digits than its factorization.

2610661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2610661 is about 1615.7540035538. The cubic root of 2610661 is about 137.6945741181.

The spelling of 2610661 in words is "two million, six hundred ten thousand, six hundred sixty-one".