2747838 has 16 divisors (see below), whose sum is σ = 5600016. Its totient is φ = 898560.

The previous prime is 2747831. The next prime is 2747851. The reversal of 2747838 is 8387472.

It is a super-2 number, since 2×2747838² = 15101227348488, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2747796 and 2747805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2747831) 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, 4003 + ... + 4638.

It is an arithmetic number, because the mean of its divisors is an integer number (350001).

2^2747838 is an apocalyptic number.

2747838 is an abundant number, since it is smaller than the sum of its proper divisors (2852178).

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

2747838 is a wasteful number, since it uses less digits than its factorization.

2747838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8699.

The product of its digits is 75264, while the sum is 39.

The square root of 2747838 is about 1657.6603994787. The cubic root of 2747838 is about 140.0652417007.

The spelling of 2747838 in words is "two million, seven hundred forty-seven thousand, eight hundred thirty-eight".