9967801 has 2 divisors, whose sum is σ = 9967802. Its totient is φ = 9967800.

The previous prime is 9967781. The next prime is 9967813. The reversal of 9967801 is 1087699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7645225 + 2322576 = 2765^2 + 1524^2 .

It is a cyclic number.

It is not a de Polignac number, because 9967801 - 2⁷ = 9967673 is a prime.

It is not a weakly prime, because it can be changed into another prime (9967891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4983900 + 4983901.

It is an arithmetic number, because the mean of its divisors is an integer number (4983901).

Almost surely, 2^9967801 is an apocalyptic number.

It is an amenable number.

9967801 is a deficient number, since it is larger than the sum of its proper divisors (1).

9967801 is an equidigital number, since it uses as much as digits as its factorization.

9967801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 9967801 is about 3157.1824464228. The cubic root of 9967801 is about 215.2119848980.

The spelling of 9967801 in words is "nine million, nine hundred sixty-seven thousand, eight hundred one".