76845138 has 8 divisors (see below), whose sum is σ = 153690288. Its totient is φ = 25615044.

The previous prime is 76845103. The next prime is 76845149. The reversal of 76845138 is 83154867.

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

76845138 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 76845138.

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, 6403756 + ... + 6403767.

It is an arithmetic number, because the mean of its divisors is an integer number (19211286).

Almost surely, 2^76845138 is an apocalyptic number.

76845138 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.

76845138 is a wasteful number, since it uses less digits than its factorization.

76845138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12807528.

The product of its digits is 161280, while the sum is 42.

The square root of 76845138 is about 8766.1358647924. The cubic root of 76845138 is about 425.1466861599.

The spelling of 76845138 in words is "seventy-six million, eight hundred forty-five thousand, one hundred thirty-eight".