78936086 has 8 divisors (see below), whose sum is σ = 122487120. Its totient is φ = 38107048.

The previous prime is 78936079. The next prime is 78936097. The reversal of 78936086 is 68063987.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 78936086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 680426 + ... + 680541.

It is an arithmetic number, because the mean of its divisors is an integer number (15310890).

Almost surely, 2^78936086 is an apocalyptic number.

78936086 is a deficient number, since it is larger than the sum of its proper divisors (43551034).

78936086 is a wasteful number, since it uses less digits than its factorization.

78936086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360998.

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 78936086 is about 8884.5982464037. The cubic root of 78936086 is about 428.9682963877.

The spelling of 78936086 in words is "seventy-eight million, nine hundred thirty-six thousand, eighty-six".