78485201 has 4 divisors (see below), whose sum is σ = 78629232. Its totient is φ = 78341172.

The previous prime is 78485171. The next prime is 78485203. The reversal of 78485201 is 10258487.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78485201 - 2¹⁰ = 78484177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78485203) 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, 71195 + ... + 72288.

It is an arithmetic number, because the mean of its divisors is an integer number (19657308).

Almost surely, 2^78485201 is an apocalyptic number.

It is an amenable number.

78485201 is a deficient number, since it is larger than the sum of its proper divisors (144031).

78485201 is a wasteful number, since it uses less digits than its factorization.

78485201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144030.

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 78485201 is about 8859.1873780838. The cubic root of 78485201 is about 428.1499769185.

The spelling of 78485201 in words is "seventy-eight million, four hundred eighty-five thousand, two hundred one".