20761383 has 8 divisors (see below), whose sum is σ = 27743488. Its totient is φ = 13810104.

The previous prime is 20761381. The next prime is 20761393. The reversal of 20761383 is 38316702.

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

It is not a de Polignac number, because 20761383 - 2¹ = 20761381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20761383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20761381) 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, 6085 + ... + 8862.

It is an arithmetic number, because the mean of its divisors is an integer number (3467936).

Almost surely, 2^20761383 is an apocalyptic number.

20761383 is a deficient number, since it is larger than the sum of its proper divisors (6982105).

20761383 is a wasteful number, since it uses less digits than its factorization.

20761383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15413.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20761383 is about 4556.4660648358. The cubic root of 20761383 is about 274.8434723552.

The spelling of 20761383 in words is "twenty million, seven hundred sixty-one thousand, three hundred eighty-three".