21074483 has 4 divisors (see below), whose sum is σ = 21103968. Its totient is φ = 21045000.

The previous prime is 21074419. The next prime is 21074489. The reversal of 21074483 is 38447012.

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 21074483 - 2⁶ = 21074419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21074489) 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, 13643 + ... + 15108.

It is an arithmetic number, because the mean of its divisors is an integer number (5275992).

Almost surely, 2^21074483 is an apocalyptic number.

21074483 is a deficient number, since it is larger than the sum of its proper divisors (29485).

21074483 is an equidigital number, since it uses as much as digits as its factorization.

21074483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29484.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 21074483 is about 4590.6952632472. The cubic root of 21074483 is about 276.2182120491.

The spelling of 21074483 in words is "twenty-one million, seventy-four thousand, four hundred eighty-three".