78835601 has 16 divisors (see below), whose sum is σ = 88972800. Its totient is φ = 69346368.

The previous prime is 78835597. The next prime is 78835609. The reversal of 78835601 is 10653887.

It is not a de Polignac number, because 78835601 - 2² = 78835597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78835609) 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, 28460 + ... + 31106.

It is an arithmetic number, because the mean of its divisors is an integer number (5560800).

Almost surely, 2^78835601 is an apocalyptic number.

It is an amenable number.

78835601 is a deficient number, since it is larger than the sum of its proper divisors (10137199).

78835601 is a wasteful number, since it uses less digits than its factorization.

78835601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 78835601 is about 8878.9414346531. The cubic root of 78835601 is about 428.7861947021.

The spelling of 78835601 in words is "seventy-eight million, eight hundred thirty-five thousand, six hundred one".