78850436 has 12 divisors (see below), whose sum is σ = 157700928. Its totient is φ = 33793032.

The previous prime is 78850423. The next prime is 78850477. The reversal of 78850436 is 63405887.

78850436 = 1159² + 1160² + ... + 1214².

It is a happy number.

78850436 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 78850393 and 78850402.

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, 1408016 + ... + 1408071.

It is an arithmetic number, because the mean of its divisors is an integer number (13141744).

Almost surely, 2^78850436 is an apocalyptic number.

It is an amenable number.

78850436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78850436 is a wasteful number, since it uses less digits than its factorization.

78850436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816098 (or 2816096 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 78850436 is about 8879.7767989967. The cubic root of 78850436 is about 428.8130888302.

The spelling of 78850436 in words is "seventy-eight million, eight hundred fifty thousand, four hundred thirty-six".