77117732 has 24 divisors (see below), whose sum is σ = 142527840. Its totient is φ = 36408960.

The previous prime is 77117693. The next prime is 77117749. The reversal of 77117732 is 23771177.

It is a junction number, because it is equal to n+sod(n) for n = 77117692 and 77117701.

It is an unprimeable number.

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, 24107 + ... + 27117.

It is an arithmetic number, because the mean of its divisors is an integer number (5938660).

Almost surely, 2^77117732 is an apocalyptic number.

It is an amenable number.

77117732 is a deficient number, since it is larger than the sum of its proper divisors (65410108).

77117732 is a wasteful number, since it uses less digits than its factorization.

77117732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371 (or 3369 counting only the distinct ones).

The product of its digits is 14406, while the sum is 35.

The square root of 77117732 is about 8781.6702283791. The cubic root of 77117732 is about 425.6488028086.

The spelling of 77117732 in words is "seventy-seven million, one hundred seventeen thousand, seven hundred thirty-two".