9794559997 has 2 divisors, whose sum is σ = 9794559998. Its totient is φ = 9794559996.

The previous prime is 9794559989. The next prime is 9794560031. The reversal of 9794559997 is 7999554979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9668985561 + 125574436 = 98331^2 + 11206^2 .

It is a cyclic number.

It is not a de Polignac number, because 9794559997 - 2³ = 9794559989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9794559937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4897279998 + 4897279999.

It is an arithmetic number, because the mean of its divisors is an integer number (4897279999).

Almost surely, 2^9794559997 is an apocalyptic number.

It is an amenable number.

9794559997 is a deficient number, since it is larger than the sum of its proper divisors (1).

9794559997 is an equidigital number, since it uses as much as digits as its factorization.

9794559997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 289340100, while the sum is 73.

The square root of 9794559997 is about 98967.4693876730. The cubic root of 9794559997 is about 2139.5789194655.

The spelling of 9794559997 in words is "nine billion, seven hundred ninety-four million, five hundred fifty-nine thousand, nine hundred ninety-seven".