2157876 has 36 divisors (see below), whose sum is σ = 6234592. Its totient is φ = 616464.

The previous prime is 2157863. The next prime is 2157893. The reversal of 2157876 is 6787512.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 2157876.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4030 + ... + 4533.

2^2157876 is an apocalyptic number.

It is an amenable number.

2157876 is an abundant number, since it is smaller than the sum of its proper divisors (4076716).

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

2157876 is a wasteful number, since it uses less digits than its factorization.

2157876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8580 (or 8575 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 2157876 is about 1468.9710684694. The cubic root of 2157876 is about 129.2236969573.

The spelling of 2157876 in words is "two million, one hundred fifty-seven thousand, eight hundred seventy-six".