78100782 has 8 divisors (see below), whose sum is σ = 156201576. Its totient is φ = 26033592.

The previous prime is 78100769. The next prime is 78100783. The reversal of 78100782 is 28700187.

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

78100782 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78100783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6508393 + ... + 6508404.

It is an arithmetic number, because the mean of its divisors is an integer number (19525197).

Almost surely, 2^78100782 is an apocalyptic number.

78100782 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.

78100782 is a wasteful number, since it uses less digits than its factorization.

78100782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13016802.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 78100782 is about 8837.4646816833. The cubic root of 78100782 is about 427.4498090933.

The spelling of 78100782 in words is "seventy-eight million, one hundred thousand, seven hundred eighty-two".