2187960 has 32 divisors (see below), whose sum is σ = 6564240. Its totient is φ = 583424.

The previous prime is 2187959. The next prime is 2187961. The reversal of 2187960 is 697812.

It is an interprime number because it is at equal distance from previous prime (2187959) and next prime (2187961).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187961) 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, 8997 + ... + 9236.

2^2187960 is an apocalyptic number.

2187960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2187960 is an abundant number, since it is smaller than the sum of its proper divisors (4376280).

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

2187960 is a wasteful number, since it uses less digits than its factorization.

2187960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18247 (or 18243 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2187960 is about 1479.1754459833. The cubic root of 2187960 is about 129.8214511363.

The spelling of 2187960 in words is "two million, one hundred eighty-seven thousand, nine hundred sixty".