78680030 has 32 divisors (see below), whose sum is σ = 166386528. Its totient is φ = 26409600.

The previous prime is 78680011. The next prime is 78680039. The reversal of 78680030 is 3008687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78680039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26081 + ... + 28940.

It is an arithmetic number, because the mean of its divisors is an integer number (5199579).

Almost surely, 2^78680030 is an apocalyptic number.

78680030 is an abundant number, since it is smaller than the sum of its proper divisors (87706498).

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

78680030 is a wasteful number, since it uses less digits than its factorization.

78680030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55052.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 78680030 is about 8870.1764356748. The cubic root of 78680030 is about 428.5039591673.

The spelling of 78680030 in words is "seventy-eight million, six hundred eighty thousand, thirty".