9439901 has 2 divisors, whose sum is σ = 9439902. Its totient is φ = 9439900.

The previous prime is 9439891. The next prime is 9439931. The reversal of 9439901 is 1099349.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6895876 + 2544025 = 2626^2 + 1595^2 .

It is a cyclic number.

It is not a de Polignac number, because 9439901 - 2¹⁴ = 9423517 is a prime.

It is a super-2 number, since 2×9439901² = 178223461779602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9439931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4719950 + 4719951.

It is an arithmetic number, because the mean of its divisors is an integer number (4719951).

Almost surely, 2^9439901 is an apocalyptic number.

It is an amenable number.

9439901 is a deficient number, since it is larger than the sum of its proper divisors (1).

9439901 is an equidigital number, since it uses as much as digits as its factorization.

9439901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 9439901 is about 3072.4421882275. The cubic root of 9439901 is about 211.3436222394.

The spelling of 9439901 in words is "nine million, four hundred thirty-nine thousand, nine hundred one".