78807873 has 8 divisors (see below), whose sum is σ = 107059968. Its totient is φ = 51547184.

The previous prime is 78807853. The next prime is 78807881. The reversal of 78807873 is 37870887.

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

It is a cyclic number.

It is not a de Polignac number, because 78807873 - 2¹³ = 78799681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78807803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247665 + ... + 247982.

It is an arithmetic number, because the mean of its divisors is an integer number (13382496).

Almost surely, 2^78807873 is an apocalyptic number.

It is an amenable number.

78807873 is a deficient number, since it is larger than the sum of its proper divisors (28252095).

78807873 is a wasteful number, since it uses less digits than its factorization.

78807873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495703.

The product of its (nonzero) digits is 526848, while the sum is 48.

The square root of 78807873 is about 8877.3798499332. The cubic root of 78807873 is about 428.7359180182.

It can be divided in two parts, 7880 and 7873, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 78807873 in words is "seventy-eight million, eight hundred seven thousand, eight hundred seventy-three".