83478966 has 8 divisors (see below), whose sum is σ = 166957944. Its totient is φ = 27826320.

The previous prime is 83478949. The next prime is 83478971. The reversal of 83478966 is 66987438.

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

83478966 is an admirable number.

It is a Curzon number.

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, 6956575 + ... + 6956586.

It is an arithmetic number, because the mean of its divisors is an integer number (20869743).

Almost surely, 2^83478966 is an apocalyptic number.

83478966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

83478966 is a wasteful number, since it uses less digits than its factorization.

83478966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13913166.

The product of its digits is 1741824, while the sum is 51.

The square root of 83478966 is about 9136.6824394854. The cubic root of 83478966 is about 437.0445279959.

It can be divided in two parts, 834 and 78966, that added together give a triangular number (79800 = T₃₉₉).

The spelling of 83478966 in words is "eighty-three million, four hundred seventy-eight thousand, nine hundred sixty-six".