9951401 has 2 divisors, whose sum is σ = 9951402. Its totient is φ = 9951400.

The previous prime is 9951377. The next prime is 9951407. The reversal of 9951401 is 1041599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8323225 + 1628176 = 2885^2 + 1276^2 .

It is a cyclic number.

It is not a de Polignac number, because 9951401 - 2¹⁰ = 9950377 is a prime.

It is not a weakly prime, because it can be changed into another prime (9951407) 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, 4975700 + 4975701.

It is an arithmetic number, because the mean of its divisors is an integer number (4975701).

Almost surely, 2^9951401 is an apocalyptic number.

It is an amenable number.

9951401 is a deficient number, since it is larger than the sum of its proper divisors (1).

9951401 is an equidigital number, since it uses as much as digits as its factorization.

9951401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 9951401 is about 3154.5841247302. The cubic root of 9951401 is about 215.0938908468.

The spelling of 9951401 in words is "nine million, nine hundred fifty-one thousand, four hundred one".