78073171 has 8 divisors (see below), whose sum is σ = 85278384. Its totient is φ = 70885920.

The previous prime is 78073153. The next prime is 78073181. The reversal of 78073171 is 17137087.

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 78073171 - 2⁵ = 78073139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78073111) 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, 5601 + ... + 13693.

It is an arithmetic number, because the mean of its divisors is an integer number (10659798).

Almost surely, 2^78073171 is an apocalyptic number.

78073171 is a deficient number, since it is larger than the sum of its proper divisors (7205213).

78073171 is a wasteful number, since it uses less digits than its factorization.

78073171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8981.

The product of its (nonzero) digits is 8232, while the sum is 34.

The square root of 78073171 is about 8835.9023874192. The cubic root of 78073171 is about 427.3994309901.

The spelling of 78073171 in words is "seventy-eight million, seventy-three thousand, one hundred seventy-one".