82638548 has 12 divisors (see below), whose sum is σ = 146022240. Its totient is φ = 40917912.

The previous prime is 82638509. The next prime is 82638553. The reversal of 82638548 is 84583628.

It is a junction number, because it is equal to n+sod(n) for n = 82638499 and 82638508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99878 + ... + 100701.

It is an arithmetic number, because the mean of its divisors is an integer number (12168520).

Almost surely, 2^82638548 is an apocalyptic number.

It is an amenable number.

82638548 is a deficient number, since it is larger than the sum of its proper divisors (63383692).

82638548 is a wasteful number, since it uses less digits than its factorization.

82638548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200686 (or 200684 counting only the distinct ones).

The product of its digits is 368640, while the sum is 44.

The square root of 82638548 is about 9090.5746793038. The cubic root of 82638548 is about 435.5729412611.

The spelling of 82638548 in words is "eighty-two million, six hundred thirty-eight thousand, five hundred forty-eight".