21713483 has 8 divisors (see below), whose sum is σ = 24192000. Its totient is φ = 19319080.

The previous prime is 21713479. The next prime is 21713491. The reversal of 21713483 is 38431712.

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

It is not a de Polignac number, because 21713483 - 2² = 21713479 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21713443) 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, 20483 + ... + 21516.

It is an arithmetic number, because the mean of its divisors is an integer number (3024000).

Almost surely, 2^21713483 is an apocalyptic number.

21713483 is a deficient number, since it is larger than the sum of its proper divisors (2478517).

21713483 is a wasteful number, since it uses less digits than its factorization.

21713483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42057.

The product of its digits is 4032, while the sum is 29.

The square root of 21713483 is about 4659.7728485410. The cubic root of 21713483 is about 278.9822019025.

The spelling of 21713483 in words is "twenty-one million, seven hundred thirteen thousand, four hundred eighty-three".