82448919 has 18 divisors (see below), whose sum is σ = 138537360. Its totient is φ = 47113416.

The previous prime is 82448917. The next prime is 82448921. The reversal of 82448919 is 91984428.

It is an interprime number because it is at equal distance from previous prime (82448917) and next prime (82448921).

It is not a de Polignac number, because 82448919 - 2¹ = 82448917 is a prime.

It is a super-2 number, since 2×82448919² = 13595648488537122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82448917) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 93039 + ... + 93920.

It is an arithmetic number, because the mean of its divisors is an integer number (7696520).

Almost surely, 2^82448919 is an apocalyptic number.

82448919 is a deficient number, since it is larger than the sum of its proper divisors (56088441).

82448919 is a wasteful number, since it uses less digits than its factorization.

82448919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186979 (or 186969 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 82448919 is about 9080.1387103942. The cubic root of 82448919 is about 435.2395193008.

The spelling of 82448919 in words is "eighty-two million, four hundred forty-eight thousand, nine hundred nineteen".