82364178 has 48 divisors (see below), whose sum is σ = 182619360. Its totient is φ = 24740352.

The previous prime is 82364153. The next prime is 82364207. The reversal of 82364178 is 87146328.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42658 + ... + 44546.

It is an arithmetic number, because the mean of its divisors is an integer number (3804570).

Almost surely, 2^82364178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82364178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91309680).

82364178 is an abundant number, since it is smaller than the sum of its proper divisors (100255182).

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

82364178 is a wasteful number, since it uses less digits than its factorization.

82364178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963 (or 1950 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 82364178 is about 9075.4712274350. The cubic root of 82364178 is about 435.0903551243.

The spelling of 82364178 in words is "eighty-two million, three hundred sixty-four thousand, one hundred seventy-eight".