2660623 has 8 divisors (see below), whose sum is σ = 3105792. Its totient is φ = 2231736.

The previous prime is 2660621. The next prime is 2660639. The reversal of 2660623 is 3260662.

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 2660623 - 2¹ = 2660621 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 (2660621) 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, 3715 + ... + 4372.

It is an arithmetic number, because the mean of its divisors is an integer number (388224).

2^2660623 is an apocalyptic number.

2660623 is a deficient number, since it is larger than the sum of its proper divisors (445169).

2660623 is an equidigital number, since it uses as much as digits as its factorization.

2660623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8141.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 2660623 is about 1631.1416247524. The cubic root of 2660623 is about 138.5674145171.

The spelling of 2660623 in words is "two million, six hundred sixty thousand, six hundred twenty-three".