82543470 has 16 divisors (see below), whose sum is σ = 198104400. Its totient is φ = 22011584.

The previous prime is 82543463. The next prime is 82543471. The reversal of 82543470 is 7434528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82543471) 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, 1375695 + ... + 1375754.

It is an arithmetic number, because the mean of its divisors is an integer number (12381525).

Almost surely, 2^82543470 is an apocalyptic number.

82543470 is an abundant number, since it is smaller than the sum of its proper divisors (115560930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82543470 is a wasteful number, since it uses less digits than its factorization.

82543470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751459.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 82543470 is about 9085.3436919029. The cubic root of 82543470 is about 435.4058308036.

Adding to 82543470 its reverse (7434528), we get a palindrome (89977998).

The spelling of 82543470 in words is "eighty-two million, five hundred forty-three thousand, four hundred seventy".