2651871 has 8 divisors (see below), whose sum is σ = 3584560. Its totient is φ = 1743552.

The previous prime is 2651867. The next prime is 2651893. The reversal of 2651871 is 1781562.

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

It is not a de Polignac number, because 2651871 - 2² = 2651867 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 (2651821) 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, 5836 + ... + 6273.

It is an arithmetic number, because the mean of its divisors is an integer number (448070).

2^2651871 is an apocalyptic number.

2651871 is a deficient number, since it is larger than the sum of its proper divisors (932689).

2651871 is a wasteful number, since it uses less digits than its factorization.

2651871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12185.

The product of its digits is 3360, while the sum is 30.

The square root of 2651871 is about 1628.4566312923. The cubic root of 2651871 is about 138.4153105173.

The spelling of 2651871 in words is "two million, six hundred fifty-one thousand, eight hundred seventy-one".