2680731 has 12 divisors (see below), whose sum is σ = 4006080. Its totient is φ = 1725360.

The previous prime is 2680721. The next prime is 2680753. The reversal of 2680731 is 1370862.

It is a de Polignac number, because none of the positive numbers 2^k-2680731 is a prime.

It is a super-2 number, since 2×2680731² = 14372637388722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2680695 and 2680704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2680721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4875 + ... + 5396.

It is an arithmetic number, because the mean of its divisors is an integer number (333840).

2^2680731 is an apocalyptic number.

2680731 is a deficient number, since it is larger than the sum of its proper divisors (1325349).

2680731 is a wasteful number, since it uses less digits than its factorization.

2680731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10306 (or 10303 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2680731 is about 1637.2938038116. The cubic root of 2680731 is about 138.9156191278.

The spelling of 2680731 in words is "two million, six hundred eighty thousand, seven hundred thirty-one".