77334436 has 9 divisors (see below), whose sum is σ = 135366049. Its totient is φ = 38658424.

The previous prime is 77334431. The next prime is 77334451. The reversal of 77334436 is 63443377.

It is a happy number.

The square root of 77334436 is 8794.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 37088100 + 40246336 = 6090^2 + 6344^2 .

It is a super-2 number, since 2×77334436² = 11961229982876192, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77334395 and 77334404.

It is not an unprimeable number, because it can be changed into a prime (77334431) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 15390 + ... + 19786.

Almost surely, 2^77334436 is an apocalyptic number.

77334436 is the 8794-th square number.

It is an amenable number.

77334436 is a deficient number, since it is larger than the sum of its proper divisors (58031613).

77334436 is an frugal number, since it uses more digits than its factorization.

77334436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798 (or 4399 counting only the distinct ones).

The product of its digits is 127008, while the sum is 37.

The cubic root of 77334436 is about 426.0471268222.

The spelling of 77334436 in words is "seventy-seven million, three hundred thirty-four thousand, four hundred thirty-six".