9881401 has 2 divisors, whose sum is σ = 9881402. Its totient is φ = 9881400.

The previous prime is 9881381. The next prime is 9881411. The reversal of 9881401 is 1041889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5475600 + 4405801 = 2340^2 + 2099^2 .

It is an emirp because it is prime and its reverse (1041889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9881401 - 2¹⁷ = 9750329 is a prime.

It is not a weakly prime, because it can be changed into another prime (9881411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4940700 + 4940701.

It is an arithmetic number, because the mean of its divisors is an integer number (4940701).

Almost surely, 2^9881401 is an apocalyptic number.

It is an amenable number.

9881401 is a deficient number, since it is larger than the sum of its proper divisors (1).

9881401 is an equidigital number, since it uses as much as digits as its factorization.

9881401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 9881401 is about 3143.4695799387. The cubic root of 9881401 is about 214.5883668994.

The spelling of 9881401 in words is "nine million, eight hundred eighty-one thousand, four hundred one".