76778082 has 24 divisors (see below), whose sum is σ = 166656204. Its totient is φ = 25545984.

The previous prime is 76778063. The next prime is 76778087. The reversal of 76778082 is 28087767.

It can be written as a sum of positive squares in 2 ways, for example, as 73462041 + 3316041 = 8571^2 + 1821^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (76778087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7078 + ... + 14270.

Almost surely, 2^76778082 is an apocalyptic number.

76778082 is an abundant number, since it is smaller than the sum of its proper divisors (89878122).

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

76778082 is a wasteful number, since it uses less digits than its factorization.

76778082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7794 (or 7791 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 76778082 is about 8762.3103117842. The cubic root of 76778082 is about 425.0229874533.

The spelling of 76778082 in words is "seventy-six million, seven hundred seventy-eight thousand, eighty-two".