77693448 has 64 divisors (see below), whose sum is σ = 231644160. Its totient is φ = 21231936.

The previous prime is 77693431. The next prime is 77693453. The reversal of 77693448 is 84439677.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77693397 and 77693406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6190 + ... + 13917.

It is an arithmetic number, because the mean of its divisors is an integer number (3619440).

Almost surely, 2^77693448 is an apocalyptic number.

It is an amenable number.

77693448 is an abundant number, since it is smaller than the sum of its proper divisors (153950712).

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

77693448 is a wasteful number, since it uses less digits than its factorization.

77693448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20146 (or 20142 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 48.

The square root of 77693448 is about 8814.3886912253. The cubic root of 77693448 is about 426.7053930778.

The spelling of 77693448 in words is "seventy-seven million, six hundred ninety-three thousand, four hundred forty-eight".