7978201 has 8 divisors (see below), whose sum is σ = 9946944. Its totient is φ = 6216720.

The previous prime is 7978193. The next prime is 7978207. The reversal of 7978201 is 1028797.

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 7978201 - 2³ = 7978193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7978207) 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, 51730 + ... + 51883.

It is an arithmetic number, because the mean of its divisors is an integer number (1243368).

Almost surely, 2^7978201 is an apocalyptic number.

It is an amenable number.

7978201 is a deficient number, since it is larger than the sum of its proper divisors (1968743).

7978201 is a wasteful number, since it uses less digits than its factorization.

7978201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103631.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 7978201 is about 2824.5709408687. The cubic root of 7978201 is about 199.8181764177.

It can be divided in two parts, 797 and 8201, that added together give a palindrome (8998).

The spelling of 7978201 in words is "seven million, nine hundred seventy-eight thousand, two hundred one".