78002201 has 8 divisors (see below), whose sum is σ = 82416000. Its totient is φ = 73619280.

The previous prime is 78002161. The next prime is 78002207. The reversal of 78002201 is 10220087.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78002201 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 (78002207) 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, 2426 + ... + 12723.

It is an arithmetic number, because the mean of its divisors is an integer number (10302000).

Almost surely, 2^78002201 is an apocalyptic number.

It is an amenable number.

78002201 is a deficient number, since it is larger than the sum of its proper divisors (4413799).

78002201 is a wasteful number, since it uses less digits than its factorization.

78002201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15439.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 78002201 is about 8831.8854725364. The cubic root of 78002201 is about 427.2698869874.

Adding to 78002201 its reverse (10220087), we get a palindrome (88222288).

It can be divided in two parts, 7800 and 2201, that added together give a palindrome (10001).

The spelling of 78002201 in words is "seventy-eight million, two thousand, two hundred one".