77694352 has 20 divisors (see below), whose sum is σ = 159388236. Its totient is φ = 36561920.

The previous prime is 77694349. The next prime is 77694361. The reversal of 77694352 is 25349677.

It can be written as a sum of positive squares in 2 ways, for example, as 35236096 + 42458256 = 5936^2 + 6516^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77694299 and 77694308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142549 + ... + 143092.

Almost surely, 2^77694352 is an apocalyptic number.

It is an amenable number.

77694352 is an abundant number, since it is smaller than the sum of its proper divisors (81693884).

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

77694352 is a wasteful number, since it uses less digits than its factorization.

77694352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285666 (or 285660 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 77694352 is about 8814.4399708660. The cubic root of 77694352 is about 426.7070480443.

It can be divided in two parts, 7769 and 4352, that added together give a palindrome (12121).

The spelling of 77694352 in words is "seventy-seven million, six hundred ninety-four thousand, three hundred fifty-two".