2120986 has 8 divisors (see below), whose sum is σ = 3636000. Its totient is φ = 908988.

The previous prime is 2120981. The next prime is 2121011. The reversal of 2120986 is 6890212.

It is a happy number.

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

It is a super-2 number, since 2×2120986² = 8997163224392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2120981) 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, 75736 + ... + 75763.

It is an arithmetic number, because the mean of its divisors is an integer number (454500).

2^2120986 is an apocalyptic number.

2120986 is a deficient number, since it is larger than the sum of its proper divisors (1515014).

2120986 is a wasteful number, since it uses less digits than its factorization.

2120986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151508.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2120986 is about 1456.3605322859. The cubic root of 2120986 is about 128.4830785149.

The spelling of 2120986 in words is "two million, one hundred twenty thousand, nine hundred eighty-six".