77836122 has 192 divisors, whose sum is σ = 227485440. Its totient is φ = 18662400.

The previous prime is 77836091. The next prime is 77836127. The reversal of 77836122 is 22163877.

It is not an unprimeable number, because it can be changed into a prime (77836127) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1275972 + ... + 1276032.

It is an arithmetic number, because the mean of its divisors is an integer number (1184820).

Almost surely, 2^77836122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77836122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113742720).

77836122 is an abundant number, since it is smaller than the sum of its proper divisors (149649318).

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

77836122 is a wasteful number, since it uses less digits than its factorization.

77836122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 146 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 77836122 is about 8822.4782232658. The cubic root of 77836122 is about 426.9664298355.

Adding to 77836122 its reverse (22163877), we get a palindrome (99999999).

The spelling of 77836122 in words is "seventy-seven million, eight hundred thirty-six thousand, one hundred twenty-two".