2836872 has 72 divisors (see below), whose sum is σ = 8132670. Its totient is φ = 892800.

The previous prime is 2836861. The next prime is 2836879. The reversal of 2836872 is 2786382.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2802276 + 34596 = 1674^2 + 186^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (2836879) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 69172 + ... + 69212.

2^2836872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2836872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4066335).

2836872 is an abundant number, since it is smaller than the sum of its proper divisors (5295798).

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

2836872 is a wasteful number, since it uses less digits than its factorization.

2836872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 77 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2836872 is about 1684.3016356936. The cubic root of 2836872 is about 141.5619643124.

The spelling of 2836872 in words is "two million, eight hundred thirty-six thousand, eight hundred seventy-two".