77227874 has 4 divisors (see below), whose sum is σ = 115841814. Its totient is φ = 38613936.

The previous prime is 77227867. The next prime is 77227879. The reversal of 77227874 is 47872277.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62520649 + 14707225 = 7907^2 + 3835^2 .

It is not an unprimeable number, because it can be changed into a prime (77227879) 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 as a sum of consecutive naturals, namely, 19306967 + ... + 19306970.

Almost surely, 2^77227874 is an apocalyptic number.

77227874 is a deficient number, since it is larger than the sum of its proper divisors (38613940).

77227874 is a wasteful number, since it uses less digits than its factorization.

77227874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38613939.

The product of its digits is 307328, while the sum is 44.

The square root of 77227874 is about 8787.9391213185. The cubic root of 77227874 is about 425.8513481357.

The spelling of 77227874 in words is "seventy-seven million, two hundred twenty-seven thousand, eight hundred seventy-four".