76778276 has 6 divisors (see below), whose sum is σ = 134361990. Its totient is φ = 38389136.

The previous prime is 76778257. The next prime is 76778287. The reversal of 76778276 is 67287767.

It can be written as a sum of positive squares in only one way, i.e., 54405376 + 22372900 = 7376^2 + 4730^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9597281 + ... + 9597288.

It is an arithmetic number, because the mean of its divisors is an integer number (22393665).

Almost surely, 2^76778276 is an apocalyptic number.

It is an amenable number.

76778276 is a deficient number, since it is larger than the sum of its proper divisors (57583714).

76778276 is a wasteful number, since it uses less digits than its factorization.

76778276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19194573 (or 19194571 counting only the distinct ones).

The product of its digits is 1382976, while the sum is 50.

The square root of 76778276 is about 8762.3213819170. The cubic root of 76778276 is about 425.0233454304.

The spelling of 76778276 in words is "seventy-six million, seven hundred seventy-eight thousand, two hundred seventy-six".