7086375221 has 2 divisors, whose sum is σ = 7086375222. Its totient is φ = 7086375220.

The previous prime is 7086375193. The next prime is 7086375259. The reversal of 7086375221 is 1225736807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4781031025 + 2305344196 = 69145^2 + 48014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7086375221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7086375521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3543187610 + 3543187611.

It is an arithmetic number, because the mean of its divisors is an integer number (3543187611).

Almost surely, 2^7086375221 is an apocalyptic number.

It is an amenable number.

7086375221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7086375221 is an equidigital number, since it uses as much as digits as its factorization.

7086375221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 7086375221 is about 84180.6107188585. The cubic root of 7086375221 is about 1920.7671288037.

The spelling of 7086375221 in words is "seven billion, eighty-six million, three hundred seventy-five thousand, two hundred twenty-one".