21350883 has 8 divisors (see below), whose sum is σ = 28571728. Its totient is φ = 14181984.

The previous prime is 21350869. The next prime is 21350897. The reversal of 21350883 is 38805312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21350869) and next prime (21350897).

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

It is not a de Polignac number, because 21350883 - 2⁴ = 21350867 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 21350883.

It is not an unprimeable number, because it can be changed into a prime (21350803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12016 + ... + 13677.

It is an arithmetic number, because the mean of its divisors is an integer number (3571466).

Almost surely, 2^21350883 is an apocalyptic number.

21350883 is a deficient number, since it is larger than the sum of its proper divisors (7220845).

21350883 is a wasteful number, since it uses less digits than its factorization.

21350883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25973.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 21350883 is about 4620.7015701082. The cubic root of 21350883 is about 277.4205405157.

The spelling of 21350883 in words is "twenty-one million, three hundred fifty thousand, eight hundred eighty-three".