76786844 has 6 divisors (see below), whose sum is σ = 134376984. Its totient is φ = 38393420.

The previous prime is 76786817. The next prime is 76786889. The reversal of 76786844 is 44868767.

It is a super-2 number, since 2×76786844² = 11792438822960672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76786792 and 76786801.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9598352 + ... + 9598359.

It is an arithmetic number, because the mean of its divisors is an integer number (22396164).

Almost surely, 2^76786844 is an apocalyptic number.

It is an amenable number.

76786844 is a deficient number, since it is larger than the sum of its proper divisors (57590140).

76786844 is a wasteful number, since it uses less digits than its factorization.

76786844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19196715 (or 19196713 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 50.

The square root of 76786844 is about 8762.8102798132. The cubic root of 76786844 is about 425.0391548701.

The spelling of 76786844 in words is "seventy-six million, seven hundred eighty-six thousand, eight hundred forty-four".