78885936 has 30 divisors (see below), whose sum is σ = 220771460. Its totient is φ = 26295264.

The previous prime is 78885931. The next prime is 78885941. The reversal of 78885936 is 63958887.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78885931) and next prime (78885941).

It is not an unprimeable number, because it can be changed into a prime (78885931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 273766 + ... + 274053.

Almost surely, 2^78885936 is an apocalyptic number.

It is an amenable number.

78885936 is an abundant number, since it is smaller than the sum of its proper divisors (141885524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78885936 is a wasteful number, since it uses less digits than its factorization.

78885936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547833 (or 547824 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 78885936 is about 8881.7754981760. The cubic root of 78885936 is about 428.8774325060.

It can be divided in two parts, 7888 and 5936, that added together give a cube (13824 = 24³).

The spelling of 78885936 in words is "seventy-eight million, eight hundred eighty-five thousand, nine hundred thirty-six".