20700383 has 4 divisors (see below), whose sum is σ = 22582248. Its totient is φ = 18818520.

The previous prime is 20700377. The next prime is 20700401. The reversal of 20700383 is 38300702.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20700383 - 2⁶ = 20700319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20700313) 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, 940916 + ... + 940937.

It is an arithmetic number, because the mean of its divisors is an integer number (5645562).

Almost surely, 2^20700383 is an apocalyptic number.

20700383 is a deficient number, since it is larger than the sum of its proper divisors (1881865).

20700383 is a wasteful number, since it uses less digits than its factorization.

20700383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881864.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20700383 is about 4549.7673566898. The cubic root of 20700383 is about 274.5740314344.

The spelling of 20700383 in words is "twenty million, seven hundred thousand, three hundred eighty-three".