21860483 has 2 divisors, whose sum is σ = 21860484. Its totient is φ = 21860482.

The previous prime is 21860479. The next prime is 21860497. The reversal of 21860483 is 38406812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21860483 - 2² = 21860479 is a prime.

It is not a weakly prime, because it can be changed into another prime (21860473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10930241 + 10930242.

It is an arithmetic number, because the mean of its divisors is an integer number (10930242).

Almost surely, 2^21860483 is an apocalyptic number.

21860483 is a deficient number, since it is larger than the sum of its proper divisors (1).

21860483 is an equidigital number, since it uses as much as digits as its factorization.

21860483 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 21860483 is about 4675.5195433235. The cubic root of 21860483 is about 279.6103551349.

The spelling of 21860483 in words is "twenty-one million, eight hundred sixty thousand, four hundred eighty-three".