77311748 has 12 divisors (see below), whose sum is σ = 135510480. Its totient is φ = 38594472.

The previous prime is 77311739. The next prime is 77311777. The reversal of 77311748 is 84711377.

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 in 3 ways as a sum of consecutive naturals, for example, 12458 + ... + 17601.

It is an arithmetic number, because the mean of its divisors is an integer number (11292540).

Almost surely, 2^77311748 is an apocalyptic number.

It is an amenable number.

77311748 is a deficient number, since it is larger than the sum of its proper divisors (58198732).

77311748 is a wasteful number, since it uses less digits than its factorization.

77311748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30706 (or 30704 counting only the distinct ones).

The product of its digits is 32928, while the sum is 38.

The square root of 77311748 is about 8792.7099349404. The cubic root of 77311748 is about 426.0054588704.

It can be divided in two parts, 773 and 11748, that added together give a palindrome (12521).

The spelling of 77311748 in words is "seventy-seven million, three hundred eleven thousand, seven hundred forty-eight".