77834132 has 6 divisors (see below), whose sum is σ = 136209738. Its totient is φ = 38917064.

The previous prime is 77834129. The next prime is 77834137. The reversal of 77834132 is 23143877.

It can be written as a sum of positive squares in only one way, i.e., 44702596 + 33131536 = 6686^2 + 5756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77834092 and 77834101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77834137) 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 as a sum of consecutive naturals, namely, 9729263 + ... + 9729270.

It is an arithmetic number, because the mean of its divisors is an integer number (22701623).

Almost surely, 2^77834132 is an apocalyptic number.

It is an amenable number.

77834132 is a deficient number, since it is larger than the sum of its proper divisors (58375606).

77834132 is a wasteful number, since it uses less digits than its factorization.

77834132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19458537 (or 19458535 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 77834132 is about 8822.3654424423. The cubic root of 77834132 is about 426.9627911203.

The spelling of 77834132 in words is "seventy-seven million, eight hundred thirty-four thousand, one hundred thirty-two".