21890483 has 8 divisors (see below), whose sum is σ = 22464816. Its totient is φ = 21319200.

The previous prime is 21890467. The next prime is 21890497. The reversal of 21890483 is 38409812.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21890483 - 2⁴ = 21890467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21890423) 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, 22793 + ... + 23733.

It is an arithmetic number, because the mean of its divisors is an integer number (2808102).

Almost surely, 2^21890483 is an apocalyptic number.

21890483 is a deficient number, since it is larger than the sum of its proper divisors (574333).

21890483 is an equidigital number, since it uses as much as digits as its factorization.

21890483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 21890483 is about 4678.7266430088. The cubic root of 21890483 is about 279.7382034290.

The spelling of 21890483 in words is "twenty-one million, eight hundred ninety thousand, four hundred eighty-three".