8739999361 has 2 divisors, whose sum is σ = 8739999362. Its totient is φ = 8739999360.

The previous prime is 8739999343. The next prime is 8739999383. The reversal of 8739999361 is 1639999378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8291195136 + 448804225 = 91056^2 + 21185^2 .

It is a cyclic number.

It is not a de Polignac number, because 8739999361 - 2⁵ = 8739999329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8739999293 and 8739999302.

It is not a weakly prime, because it can be changed into another prime (8739999461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4369999680 + 4369999681.

It is an arithmetic number, because the mean of its divisors is an integer number (4369999681).

Almost surely, 2^8739999361 is an apocalyptic number.

It is an amenable number.

8739999361 is a deficient number, since it is larger than the sum of its proper divisors (1).

8739999361 is an equidigital number, since it uses as much as digits as its factorization.

8739999361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19840464, while the sum is 64.

The square root of 8739999361 is about 93487.9637226098. The cubic root of 8739999361 is about 2059.8572937401.

The spelling of 8739999361 in words is "eight billion, seven hundred thirty-nine million, nine hundred ninety-nine thousand, three hundred sixty-one".