76788121 has 8 divisors (see below), whose sum is σ = 78962688. Its totient is φ = 74628000.

The previous prime is 76788119. The next prime is 76788157. The reversal of 76788121 is 12188767.

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

It is a cyclic number.

It is not a de Polignac number, because 76788121 - 2¹ = 76788119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76788521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7656 + ... + 14566.

It is an arithmetic number, because the mean of its divisors is an integer number (9870336).

Almost surely, 2^76788121 is an apocalyptic number.

It is an amenable number.

76788121 is a deficient number, since it is larger than the sum of its proper divisors (2174567).

76788121 is a wasteful number, since it uses less digits than its factorization.

76788121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7223.

The product of its digits is 37632, while the sum is 40.

The square root of 76788121 is about 8762.8831442625. The cubic root of 76788121 is about 425.0415110549.

It can be divided in two parts, 767 and 88121, that added together give a palindrome (88888).

The spelling of 76788121 in words is "seventy-six million, seven hundred eighty-eight thousand, one hundred twenty-one".