21948483 has 8 divisors (see below), whose sum is σ = 29887488. Its totient is φ = 14320904.

The previous prime is 21948469. The next prime is 21948497. The reversal of 21948483 is 38484912.

It is an interprime number because it is at equal distance from previous prime (21948469) and next prime (21948497).

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 21948483 - 2⁹ = 21947971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21948083) 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, 77691 + ... + 77972.

It is an arithmetic number, because the mean of its divisors is an integer number (3735936).

Almost surely, 2^21948483 is an apocalyptic number.

21948483 is a deficient number, since it is larger than the sum of its proper divisors (7939005).

21948483 is a wasteful number, since it uses less digits than its factorization.

21948483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155713.

The product of its digits is 55296, while the sum is 39.

The square root of 21948483 is about 4684.9208104300. The cubic root of 21948483 is about 279.9850459701.

The spelling of 21948483 in words is "twenty-one million, nine hundred forty-eight thousand, four hundred eighty-three".