9970901 has 2 divisors, whose sum is σ = 9970902. Its totient is φ = 9970900.

The previous prime is 9970879. The next prime is 9970907. The reversal of 9970901 is 1090799.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9579025 + 391876 = 3095^2 + 626^2 .

It is an emirp because it is prime and its reverse (1090799) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9970901 - 2¹⁸ = 9708757 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9970907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4985450 + 4985451.

It is an arithmetic number, because the mean of its divisors is an integer number (4985451).

Almost surely, 2^9970901 is an apocalyptic number.

It is an amenable number.

9970901 is a deficient number, since it is larger than the sum of its proper divisors (1).

9970901 is an equidigital number, since it uses as much as digits as its factorization.

9970901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103, while the sum is 35.

The square root of 9970901 is about 3157.6733523276. The cubic root of 9970901 is about 215.2342929946.

The spelling of 9970901 in words is "nine million, nine hundred seventy thousand, nine hundred one".