77604343 has 4 divisors (see below), whose sum is σ = 77732800. Its totient is φ = 77475888.

The previous prime is 77604311. The next prime is 77604353. The reversal of 77604343 is 34340677.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77604343 - 2⁵ = 77604311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77604299 and 77604308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77604353) by changing a digit.

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, 63318 + ... + 64531.

It is an arithmetic number, because the mean of its divisors is an integer number (19433200).

Almost surely, 2^77604343 is an apocalyptic number.

77604343 is a deficient number, since it is larger than the sum of its proper divisors (128457).

77604343 is a wasteful number, since it uses less digits than its factorization.

77604343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128456.

The product of its (nonzero) digits is 42336, while the sum is 34.

The square root of 77604343 is about 8809.3327216084. The cubic root of 77604343 is about 426.5422041617.

The spelling of 77604343 in words is "seventy-seven million, six hundred four thousand, three hundred forty-three".