77610434 has 16 divisors (see below), whose sum is σ = 128126880. Its totient is φ = 34964160.

The previous prime is 77610433. The next prime is 77610437. The reversal of 77610434 is 43401677.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 77610434.

It is not an unprimeable number, because it can be changed into a prime (77610433) 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 7 ways as a sum of consecutive naturals, for example, 13124 + ... + 18095.

It is an arithmetic number, because the mean of its divisors is an integer number (8007930).

Almost surely, 2^77610434 is an apocalyptic number.

77610434 is a deficient number, since it is larger than the sum of its proper divisors (50516446).

77610434 is a wasteful number, since it uses less digits than its factorization.

77610434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31345.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 77610434 is about 8809.6784277294. The cubic root of 77610434 is about 426.5533633335.

The spelling of 77610434 in words is "seventy-seven million, six hundred ten thousand, four hundred thirty-four".