78680626 has 8 divisors (see below), whose sum is σ = 120765744. Its totient is φ = 38425380.

The previous prime is 78680621. The next prime is 78680639. The reversal of 78680626 is 62608687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (78680621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457360 + ... + 457531.

It is an arithmetic number, because the mean of its divisors is an integer number (15095718).

Almost surely, 2^78680626 is an apocalyptic number.

78680626 is a deficient number, since it is larger than the sum of its proper divisors (42085118).

78680626 is a wasteful number, since it uses less digits than its factorization.

78680626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914936.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 78680626 is about 8870.2100313352. The cubic root of 78680626 is about 428.5050411348.

The spelling of 78680626 in words is "seventy-eight million, six hundred eighty thousand, six hundred twenty-six".