78473107 has 4 divisors (see below), whose sum is σ = 78581776. Its totient is φ = 78364440.

The previous prime is 78473099. The next prime is 78473113. The reversal of 78473107 is 70137487.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78473107 - 2³ = 78473099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78473117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53244 + ... + 54697.

It is an arithmetic number, because the mean of its divisors is an integer number (19645444).

Almost surely, 2^78473107 is an apocalyptic number.

78473107 is a deficient number, since it is larger than the sum of its proper divisors (108669).

78473107 is a wasteful number, since it uses less digits than its factorization.

78473107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108668.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 78473107 is about 8858.5047835399. The cubic root of 78473107 is about 428.1279841872.

The spelling of 78473107 in words is "seventy-eight million, four hundred seventy-three thousand, one hundred seven".