77384968 has 16 divisors (see below), whose sum is σ = 146454480. Its totient is φ = 38330448.

The previous prime is 77384953. The next prime is 77384971. The reversal of 77384968 is 86948377.

It is a happy number.

It is a super-2 number, since 2×77384968² = 11976866544722048, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 44346 + ... + 46057.

It is an arithmetic number, because the mean of its divisors is an integer number (9153405).

Almost surely, 2^77384968 is an apocalyptic number.

It is an amenable number.

77384968 is a deficient number, since it is larger than the sum of its proper divisors (69069512).

77384968 is a wasteful number, since it uses less digits than its factorization.

77384968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90516 (or 90512 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 52.

The square root of 77384968 is about 8796.8726261098. The cubic root of 77384968 is about 426.1399027663.

The spelling of 77384968 in words is "seventy-seven million, three hundred eighty-four thousand, nine hundred sixty-eight".