2647842 has 8 divisors (see below), whose sum is σ = 5295696. Its totient is φ = 882612.

The previous prime is 2647817. The next prime is 2647847. The reversal of 2647842 is 2487462.

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

2647842 is an admirable number.

It is a super-2 number, since 2×2647842² = 14022134513928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2647847) 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, 220648 + ... + 220659.

It is an arithmetic number, because the mean of its divisors is an integer number (661962).

2^2647842 is an apocalyptic number.

2647842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2647842 is a wasteful number, since it uses less digits than its factorization.

2647842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441312.

The product of its digits is 21504, while the sum is 33.

The square root of 2647842 is about 1627.2191001829. The cubic root of 2647842 is about 138.3451766444.

The spelling of 2647842 in words is "two million, six hundred forty-seven thousand, eight hundred forty-two".