77343834 has 32 divisors (see below), whose sum is σ = 156723840. Its totient is φ = 25444800.

The previous prime is 77343821. The next prime is 77343839. The reversal of 77343834 is 43834377.

It is a junction number, because it is equal to n+sod(n) for n = 77343792 and 77343801.

It is not an unprimeable number, because it can be changed into a prime (77343839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248539 + ... + 248849.

It is an arithmetic number, because the mean of its divisors is an integer number (4897620).

Almost surely, 2^77343834 is an apocalyptic number.

77343834 is an abundant number, since it is smaller than the sum of its proper divisors (79380006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77343834 is a wasteful number, since it uses less digits than its factorization.

77343834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726.

The product of its digits is 169344, while the sum is 39.

The square root of 77343834 is about 8794.5343253637. The cubic root of 77343834 is about 426.0643844585.

The spelling of 77343834 in words is "seventy-seven million, three hundred forty-three thousand, eight hundred thirty-four".