83478339 has 48 divisors (see below), whose sum is σ = 146644992. Its totient is φ = 44725824.

The previous prime is 83478323. The next prime is 83478361. The reversal of 83478339 is 93387438.

It is a happy number.

It is not a de Polignac number, because 83478339 - 2⁴ = 83478323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83478294 and 83478303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83478139) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76254 + ... + 77340.

It is an arithmetic number, because the mean of its divisors is an integer number (3055104).

Almost surely, 2^83478339 is an apocalyptic number.

83478339 is a deficient number, since it is larger than the sum of its proper divisors (63166653).

83478339 is a wasteful number, since it uses less digits than its factorization.

83478339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176 (or 1173 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 83478339 is about 9136.6481271854. The cubic root of 83478339 is about 437.0434337977.

Subtracting 83478339 from its reverse (93387438), we obtain a palindrome (9909099).

The spelling of 83478339 in words is "eighty-three million, four hundred seventy-eight thousand, three hundred thirty-nine".