7991003201 has 8 divisors (see below), whose sum is σ = 8140851264. Its totient is φ = 7842430800.

The previous prime is 7991003179. The next prime is 7991003203. The reversal of 7991003201 is 1023001997.

It is a happy number.

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-7991003201 is a prime.

It is a super-2 number, since 2×7991003201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7991003203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306266 + ... + 331331.

It is an arithmetic number, because the mean of its divisors is an integer number (1017606408).

Almost surely, 2^7991003201 is an apocalyptic number.

It is an amenable number.

7991003201 is a deficient number, since it is larger than the sum of its proper divisors (149848063).

7991003201 is a wasteful number, since it uses less digits than its factorization.

7991003201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637831.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 7991003201 is about 89392.4113166213. The cubic root of 7991003201 is about 1999.2499855243.

The spelling of 7991003201 in words is "seven billion, nine hundred ninety-one million, three thousand, two hundred one".