77734444 has 6 divisors (see below), whose sum is σ = 136035284. Its totient is φ = 38867220.

The previous prime is 77734441. The next prime is 77734451. The reversal of 77734444 is 44443777.

It is a junction number, because it is equal to n+sod(n) for n = 77734397 and 77734406.

It is not an unprimeable number, because it can be changed into a prime (77734441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9716802 + ... + 9716809.

Almost surely, 2^77734444 is an apocalyptic number.

It is an amenable number.

77734444 is a deficient number, since it is larger than the sum of its proper divisors (58300840).

77734444 is a wasteful number, since it uses less digits than its factorization.

77734444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19433615 (or 19433613 counting only the distinct ones).

The product of its digits is 263424, while the sum is 40.

The square root of 77734444 is about 8816.7139003146. The cubic root of 77734444 is about 426.7804321740.

The spelling of 77734444 in words is "seventy-seven million, seven hundred thirty-four thousand, four hundred forty-four".