20083811 has 8 divisors (see below), whose sum is σ = 21964800. Its totient is φ = 18212040.

The previous prime is 20083787. The next prime is 20083813. The reversal of 20083811 is 11838002.

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

It is not a de Polignac number, because 20083811 - 2¹⁰ = 20082787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20083813) 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, 2750 + ... + 6908.

It is an arithmetic number, because the mean of its divisors is an integer number (2745600).

Almost surely, 2^20083811 is an apocalyptic number.

20083811 is a deficient number, since it is larger than the sum of its proper divisors (1880989).

20083811 is a wasteful number, since it uses less digits than its factorization.

20083811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 20083811 is about 4481.4965134428. The cubic root of 20083811 is about 271.8203966794.

The spelling of 20083811 in words is "twenty million, eighty-three thousand, eight hundred eleven".