77284132 has 12 divisors (see below), whose sum is σ = 135310336. Its totient is φ = 38624040.

The previous prime is 77284111. The next prime is 77284169. The reversal of 77284132 is 23148277.

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 3 ways as a sum of consecutive naturals, for example, 11293 + ... + 16795.

Almost surely, 2^77284132 is an apocalyptic number.

It is an amenable number.

77284132 is a deficient number, since it is larger than the sum of its proper divisors (58026204).

77284132 is a wasteful number, since it uses less digits than its factorization.

77284132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9018 (or 9016 counting only the distinct ones).

The product of its digits is 18816, while the sum is 34.

The square root of 77284132 is about 8791.1394028306. The cubic root of 77284132 is about 425.9547293323.

The spelling of 77284132 in words is "seventy-seven million, two hundred eighty-four thousand, one hundred thirty-two".