2187792 has 30 divisors (see below), whose sum is σ = 6123182. Its totient is φ = 729216.

The previous prime is 2187791. The next prime is 2187811. The reversal of 2187792 is 2977812.

It can be written as a sum of positive squares in only one way, i.e., 2178576 + 9216 = 1476^2 + 96^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2187791) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7453 + ... + 7740.

2^2187792 is an apocalyptic number.

It is an amenable number.

2187792 is an abundant number, since it is smaller than the sum of its proper divisors (3935390).

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

2187792 is a wasteful number, since it uses less digits than its factorization.

2187792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15207 (or 15198 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2187792 is about 1479.1186564978. The cubic root of 2187792 is about 129.8181283208.

The spelling of 2187792 in words is "two million, one hundred eighty-seven thousand, seven hundred ninety-two".