2689971 has 8 divisors (see below), whose sum is σ = 3594240. Its totient is φ = 1789512.

The previous prime is 2689957. The next prime is 2689979. The reversal of 2689971 is 1799862.

2689971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2689971 - 2¹⁰ = 2688947 is a prime.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2689979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2070 + ... + 3108.

It is an arithmetic number, because the mean of its divisors is an integer number (449280).

2^2689971 is an apocalyptic number.

2689971 is a deficient number, since it is larger than the sum of its proper divisors (904269).

2689971 is a wasteful number, since it uses less digits than its factorization.

2689971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905.

The product of its digits is 54432, while the sum is 42.

The square root of 2689971 is about 1640.1131058558. The cubic root of 2689971 is about 139.0750418600.

The spelling of 2689971 in words is "two million, six hundred eighty-nine thousand, nine hundred seventy-one".