78680607 has 16 divisors (see below), whose sum is σ = 111899232. Its totient is φ = 49003520.

The previous prime is 78680593. The next prime is 78680621. The reversal of 78680607 is 70608687.

It is an interprime number because it is at equal distance from previous prime (78680593) and next prime (78680621).

It is not a de Polignac number, because 78680607 - 2¹⁶ = 78615071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78680647) 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, 1357 + ... + 12617.

It is an arithmetic number, because the mean of its divisors is an integer number (6993702).

Almost surely, 2^78680607 is an apocalyptic number.

78680607 is a deficient number, since it is larger than the sum of its proper divisors (33218625).

78680607 is a wasteful number, since it uses less digits than its factorization.

78680607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11418.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 78680607 is about 8870.2089603346. The cubic root of 78680607 is about 428.5050066427.

The spelling of 78680607 in words is "seventy-eight million, six hundred eighty thousand, six hundred seven".