78650436 has 24 divisors (see below), whose sum is σ = 189846720. Its totient is φ = 25312672.

The previous prime is 78650399. The next prime is 78650437. The reversal of 78650436 is 63405687.

It is a junction number, because it is equal to n+sod(n) for n = 78650394 and 78650403.

It is not an unprimeable number, because it can be changed into a prime (78650437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112656 + ... + 113351.

It is an arithmetic number, because the mean of its divisors is an integer number (7910280).

Almost surely, 2^78650436 is an apocalyptic number.

It is an amenable number.

78650436 is an abundant number, since it is smaller than the sum of its proper divisors (111196284).

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

78650436 is a wasteful number, since it uses less digits than its factorization.

78650436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226043 (or 226041 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 78650436 is about 8868.5081045236. The cubic root of 78650436 is about 428.4502278862.

The spelling of 78650436 in words is "seventy-eight million, six hundred fifty thousand, four hundred thirty-six".