9098693861 has 2 divisors, whose sum is σ = 9098693862. Its totient is φ = 9098693860.

The previous prime is 9098693839. The next prime is 9098693869. The reversal of 9098693861 is 1683968909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6776417761 + 2322276100 = 82319^2 + 48190^2 .

It is a cyclic number.

It is not a de Polignac number, because 9098693861 - 2⁶ = 9098693797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9098693861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9098693869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4549346930 + 4549346931.

It is an arithmetic number, because the mean of its divisors is an integer number (4549346931).

Almost surely, 2^9098693861 is an apocalyptic number.

It is an amenable number.

9098693861 is a deficient number, since it is larger than the sum of its proper divisors (1).

9098693861 is an equidigital number, since it uses as much as digits as its factorization.

9098693861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 59.

The square root of 9098693861 is about 95387.0738674795. The cubic root of 9098693861 is about 2087.6595872878.

The spelling of 9098693861 in words is "nine billion, ninety-eight million, six hundred ninety-three thousand, eight hundred sixty-one".