2120878 has 8 divisors (see below), whose sum is σ = 3190968. Its totient is φ = 1057224.

The previous prime is 2120863. The next prime is 2120879. The reversal of 2120878 is 8780212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676 + ... + 2167.

It is an arithmetic number, because the mean of its divisors is an integer number (398871).

2^2120878 is an apocalyptic number.

2120878 is a deficient number, since it is larger than the sum of its proper divisors (1070090).

2120878 is a wasteful number, since it uses less digits than its factorization.

2120878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3218.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 2120878 is about 1456.3234530831. The cubic root of 2120878 is about 128.4808977040.

The spelling of 2120878 in words is "two million, one hundred twenty thousand, eight hundred seventy-eight".