78829660 has 48 divisors (see below), whose sum is σ = 203749056. Its totient is φ = 24947712.

The previous prime is 78829649. The next prime is 78829661. The reversal of 78829660 is 6692887.

It is a self number, because there is not a number n which added to its sum of digits gives 78829660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78829661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19837 + ... + 23476.

It is an arithmetic number, because the mean of its divisors is an integer number (4244772).

Almost surely, 2^78829660 is an apocalyptic number.

78829660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78829660 is an abundant number, since it is smaller than the sum of its proper divisors (124919396).

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

78829660 is a wasteful number, since it uses less digits than its factorization.

78829660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43342 (or 43340 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 78829660 is about 8878.6068727025. The cubic root of 78829660 is about 428.7754234146.

The spelling of 78829660 in words is "seventy-eight million, eight hundred twenty-nine thousand, six hundred sixty".