83478860 has 12 divisors (see below), whose sum is σ = 175305648. Its totient is φ = 33391536.

The previous prime is 83478847. The next prime is 83478881. The reversal of 83478860 is 6887438.

It is a happy 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, 2086952 + ... + 2086991.

It is an arithmetic number, because the mean of its divisors is an integer number (14608804).

Almost surely, 2^83478860 is an apocalyptic number.

It is an amenable number.

83478860 is an abundant number, since it is smaller than the sum of its proper divisors (91826788).

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

83478860 is a wasteful number, since it uses less digits than its factorization.

83478860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173952 (or 4173950 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 83478860 is about 9136.6766386909. The cubic root of 83478860 is about 437.0443430122.

The spelling of 83478860 in words is "eighty-three million, four hundred seventy-eight thousand, eight hundred sixty".