10503989 has 2 divisors, whose sum is σ = 10503990. Its totient is φ = 10503988.

The previous prime is 10503959. The next prime is 10504007. The reversal of 10503989 is 98930501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5808100 + 4695889 = 2410^2 + 2167^2 .

It is a cyclic number.

It is not a de Polignac number, because 10503989 - 2¹² = 10499893 is a prime.

It is a super-2 number, since 2×10503989² = 220667569824242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10503959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5251994 + 5251995.

It is an arithmetic number, because the mean of its divisors is an integer number (5251995).

Almost surely, 2^10503989 is an apocalyptic number.

It is an amenable number.

10503989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10503989 is an equidigital number, since it uses as much as digits as its factorization.

10503989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 10503989 is about 3240.9858068187. The cubic root of 10503989 is about 219.0036834865.

The spelling of 10503989 in words is "ten million, five hundred three thousand, nine hundred eighty-nine".