2680651 has 4 divisors (see below), whose sum is σ = 2713032. Its totient is φ = 2648272.

The previous prime is 2680631. The next prime is 2680661. The reversal of 2680651 is 1560862.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2680651 - 2⁵ = 2680619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2680631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16066 + ... + 16231.

It is an arithmetic number, because the mean of its divisors is an integer number (678258).

2^2680651 is an apocalyptic number.

2680651 is the 1036-th centered pentagonal number.

2680651 is a deficient number, since it is larger than the sum of its proper divisors (32381).

2680651 is an equidigital number, since it uses as much as digits as its factorization.

2680651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32380.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2680651 is about 1637.2693730721. The cubic root of 2680651 is about 138.9142372460.

The spelling of 2680651 in words is "two million, six hundred eighty thousand, six hundred fifty-one".