10448989 has 2 divisors, whose sum is σ = 10448990. Its totient is φ = 10448988.

The previous prime is 10448987. The next prime is 10449011. The reversal of 10448989 is 98984401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8323225 + 2125764 = 2885^2 + 1458^2 .

It is an emirp because it is prime and its reverse (98984401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10448989 - 2¹ = 10448987 is a prime.

It is a super-2 number, since 2×10448989² = 218362742244242, which contains 22 as substring.

Together with 10448987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10448983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5224494 + 5224495.

It is an arithmetic number, because the mean of its divisors is an integer number (5224495).

Almost surely, 2^10448989 is an apocalyptic number.

It is an amenable number.

10448989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10448989 is an equidigital number, since it uses as much as digits as its factorization.

10448989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 10448989 is about 3232.4895978178. The cubic root of 10448989 is about 218.6207722172.

The spelling of 10448989 in words is "ten million, four hundred forty-eight thousand, nine hundred eighty-nine".