20087683 has 8 divisors (see below), whose sum is σ = 25044480. Its totient is φ = 15652680.

The previous prime is 20087653. The next prime is 20087701. The reversal of 20087683 is 38678002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20087683 - 2¹³ = 20079491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20087603) 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, 130363 + ... + 130516.

It is an arithmetic number, because the mean of its divisors is an integer number (3130560).

Almost surely, 2^20087683 is an apocalyptic number.

20087683 is a deficient number, since it is larger than the sum of its proper divisors (4956797).

20087683 is a wasteful number, since it uses less digits than its factorization.

20087683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260897.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 20087683 is about 4481.9284911743. The cubic root of 20087683 is about 271.8378638316.

The spelling of 20087683 in words is "twenty million, eighty-seven thousand, six hundred eighty-three".