10401649 has 2 divisors, whose sum is σ = 10401650. Its totient is φ = 10401648.

The previous prime is 10401619. The next prime is 10401653. The reversal of 10401649 is 94610401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10400625 + 1024 = 3225^2 + 32^2 .

It is an emirp because it is prime and its reverse (94610401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10401649 - 2⁹ = 10401137 is a prime.

It is not a weakly prime, because it can be changed into another prime (10401619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200824 + 5200825.

It is an arithmetic number, because the mean of its divisors is an integer number (5200825).

Almost surely, 2^10401649 is an apocalyptic number.

It is an amenable number.

10401649 is a deficient number, since it is larger than the sum of its proper divisors (1).

10401649 is an equidigital number, since it uses as much as digits as its factorization.

10401649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 10401649 is about 3225.1587557824. The cubic root of 10401649 is about 218.2901125850.

The spelling of 10401649 in words is "ten million, four hundred one thousand, six hundred forty-nine".