20083870 has 16 divisors (see below), whose sum is σ = 36204480. Its totient is φ = 8021664.

The previous prime is 20083849. The next prime is 20083897. The reversal of 20083870 is 7838002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9424 + ... + 11356.

It is an arithmetic number, because the mean of its divisors is an integer number (2262780).

Almost surely, 2^20083870 is an apocalyptic number.

20083870 is a deficient number, since it is larger than the sum of its proper divisors (16120610).

20083870 is a wasteful number, since it uses less digits than its factorization.

20083870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 20083870 is about 4481.5030960605. The cubic root of 20083870 is about 271.8206628538.

The spelling of 20083870 in words is "twenty million, eighty-three thousand, eight hundred seventy".