78907801 has 8 divisors (see below), whose sum is σ = 90249984. Its totient is φ = 67583040.

The previous prime is 78907793. The next prime is 78907813. The reversal of 78907801 is 10870987.

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

It is not a de Polignac number, because 78907801 - 2³ = 78907793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78907201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7521 + ... + 14641.

It is an arithmetic number, because the mean of its divisors is an integer number (11281248).

Almost surely, 2^78907801 is an apocalyptic number.

It is an amenable number.

78907801 is a deficient number, since it is larger than the sum of its proper divisors (11342183).

78907801 is a wasteful number, since it uses less digits than its factorization.

78907801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8711.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 78907801 is about 8883.0063041743. The cubic root of 78907801 is about 428.9170531671.

The spelling of 78907801 in words is "seventy-eight million, nine hundred seven thousand, eight hundred one".