82434478 has 8 divisors (see below), whose sum is σ = 141316272. Its totient is φ = 35329056.

The previous prime is 82434437. The next prime is 82434491. The reversal of 82434478 is 87443428.

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

It is a self number, because there is not a number n which added to its sum of digits gives 82434478.

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, 2944075 + ... + 2944102.

It is an arithmetic number, because the mean of its divisors is an integer number (17664534).

Almost surely, 2^82434478 is an apocalyptic number.

82434478 is a deficient number, since it is larger than the sum of its proper divisors (58881794).

82434478 is a wasteful number, since it uses less digits than its factorization.

82434478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888186.

The product of its digits is 172032, while the sum is 40.

The square root of 82434478 is about 9079.3434784680. The cubic root of 82434478 is about 435.2141069567.

It can be divided in two parts, 8243 and 4478, that added together give a palindrome (12721).

The spelling of 82434478 in words is "eighty-two million, four hundred thirty-four thousand, four hundred seventy-eight".