7971223701 has 16 divisors (see below), whose sum is σ = 12150030464. Its totient is φ = 4553708544.

The previous prime is 7971223699. The next prime is 7971223709. The reversal of 7971223701 is 1073221797.

It is not a de Polignac number, because 7971223701 - 2¹ = 7971223699 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7971223701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7971223709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26301 + ... + 128973.

It is an arithmetic number, because the mean of its divisors is an integer number (759376904).

Almost surely, 2^7971223701 is an apocalyptic number.

It is an amenable number.

7971223701 is a deficient number, since it is larger than the sum of its proper divisors (4178806763).

7971223701 is a wasteful number, since it uses less digits than its factorization.

7971223701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106380.

The product of its (nonzero) digits is 37044, while the sum is 39.

The square root of 7971223701 is about 89281.7097786551. The cubic root of 7971223701 is about 1997.5990940620.

The spelling of 7971223701 in words is "seven billion, nine hundred seventy-one million, two hundred twenty-three thousand, seven hundred one".