78887132 has 12 divisors (see below), whose sum is σ = 138124896. Its totient is φ = 39422880.

The previous prime is 78887131. The next prime is 78887147. The reversal of 78887132 is 23178887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78887131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6173 + ... + 13995.

It is an arithmetic number, because the mean of its divisors is an integer number (11510408).

Almost surely, 2^78887132 is an apocalyptic number.

It is an amenable number.

78887132 is a deficient number, since it is larger than the sum of its proper divisors (59237764).

78887132 is a wasteful number, since it uses less digits than its factorization.

78887132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10348 (or 10346 counting only the distinct ones).

The product of its digits is 150528, while the sum is 44.

The square root of 78887132 is about 8881.8428268012. The cubic root of 78887132 is about 428.8795999173.

The spelling of 78887132 in words is "seventy-eight million, eight hundred eighty-seven thousand, one hundred thirty-two".