8961401 has 2 divisors, whose sum is σ = 8961402. Its totient is φ = 8961400.

The previous prime is 8961391. The next prime is 8961409. The reversal of 8961401 is 1041698.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6635776 + 2325625 = 2576^2 + 1525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8961401 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8961409) 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, 4480700 + 4480701.

It is an arithmetic number, because the mean of its divisors is an integer number (4480701).

Almost surely, 2^8961401 is an apocalyptic number.

It is an amenable number.

8961401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8961401 is an equidigital number, since it uses as much as digits as its factorization.

8961401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 8961401 is about 2993.5599208969. The cubic root of 8961401 is about 207.7105889328.

The spelling of 8961401 in words is "eight million, nine hundred sixty-one thousand, four hundred one".