77193796 has 27 divisors (see below), whose sum is σ = 141961183. Its totient is φ = 36725480.

The previous prime is 77193763. The next prime is 77193797. The reversal of 77193796 is 69739177.

The square root of 77193796 is 8786.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77193797) 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 8 ways as a sum of consecutive naturals, for example, 404061 + ... + 404251.

Almost surely, 2^77193796 is an apocalyptic number.

77193796 is the 8786-th square number.

It is an amenable number.

77193796 is a deficient number, since it is larger than the sum of its proper divisors (64767387).

77193796 is a wasteful number, since it uses less digits than its factorization.

77193796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432 (or 216 counting only the distinct ones).

The product of its digits is 500094, while the sum is 49.

The cubic root of 77193796 is about 425.7887010776.

Multiplying 77193796 by its sum of digits (49), we get a square (3782496004 = 61502²).

The spelling of 77193796 in words is "seventy-seven million, one hundred ninety-three thousand, seven hundred ninety-six".