78085732 has 12 divisors (see below), whose sum is σ = 136783360. Its totient is φ = 39004776.

The previous prime is 78085727. The next prime is 78085739. The reversal of 78085732 is 23758087.

It is not an unprimeable number, because it can be changed into a prime (78085739) 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, 4632 + ... + 13327.

Almost surely, 2^78085732 is an apocalyptic number.

It is an amenable number.

78085732 is a deficient number, since it is larger than the sum of its proper divisors (58697628).

78085732 is a wasteful number, since it uses less digits than its factorization.

78085732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19050 (or 19048 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 78085732 is about 8836.6131521075. The cubic root of 78085732 is about 427.4223508412.

The spelling of 78085732 in words is "seventy-eight million, eighty-five thousand, seven hundred thirty-two".