2641857 has 8 divisors (see below), whose sum is σ = 3557760. Its totient is φ = 1743600.

The previous prime is 2641841. The next prime is 2641879. The reversal of 2641857 is 7581462.

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

It is not a de Polignac number, because 2641857 - 2⁴ = 2641841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2641357) 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, 4057 + ... + 4662.

It is an arithmetic number, because the mean of its divisors is an integer number (444720).

2^2641857 is an apocalyptic number.

It is an amenable number.

2641857 is a deficient number, since it is larger than the sum of its proper divisors (915903).

2641857 is a wasteful number, since it uses less digits than its factorization.

2641857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8823.

The product of its digits is 13440, while the sum is 33.

The square root of 2641857 is about 1625.3790327182. The cubic root of 2641857 is about 138.2408627019.

The spelling of 2641857 in words is "two million, six hundred forty-one thousand, eight hundred fifty-seven".