20930083 has 8 divisors (see below), whose sum is σ = 21740400. Its totient is φ = 20125728.

The previous prime is 20930057. The next prime is 20930093. The reversal of 20930083 is 38003902.

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 20930083 - 2⁵ = 20930051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20930033) 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, 6460 + ... + 9142.

It is an arithmetic number, because the mean of its divisors is an integer number (2717550).

Almost surely, 2^20930083 is an apocalyptic number.

20930083 is a deficient number, since it is larger than the sum of its proper divisors (810317).

20930083 is a wasteful number, since it uses less digits than its factorization.

20930083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 20930083 is about 4574.9407646438. The cubic root of 20930083 is about 275.5858935541.

Adding to 20930083 its reverse (38003902), we get a palindrome (58933985).

The spelling of 20930083 in words is "twenty million, nine hundred thirty thousand, eighty-three".