78652850 has 12 divisors (see below), whose sum is σ = 146294394. Its totient is φ = 31461120.

The previous prime is 78652823. The next prime is 78652853. The reversal of 78652850 is 5825687.

It can be written as a sum of positive squares in 3 ways, for example, as 48038761 + 30614089 = 6931^2 + 5533^2 .

It is a junction number, because it is equal to n+sod(n) for n = 78652798 and 78652807.

It is not an unprimeable number, because it can be changed into a prime (78652853) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 786479 + ... + 786578.

Almost surely, 2^78652850 is an apocalyptic number.

78652850 is a deficient number, since it is larger than the sum of its proper divisors (67641544).

78652850 is a wasteful number, since it uses less digits than its factorization.

78652850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573069 (or 1573064 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 78652850 is about 8868.6442030335. The cubic root of 78652850 is about 428.4546112833.

The spelling of 78652850 in words is "seventy-eight million, six hundred fifty-two thousand, eight hundred fifty".