10538989 has 2 divisors, whose sum is σ = 10538990. Its totient is φ = 10538988.

The previous prime is 10538981. The next prime is 10539007. The reversal of 10538989 is 98983501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6200100 + 4338889 = 2490^2 + 2083^2 .

It is an emirp because it is prime and its reverse (98983501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10538989 - 2³ = 10538981 is a prime.

It is a super-2 number, since 2×10538989² = 222140578284242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10538981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5269494 + 5269495.

It is an arithmetic number, because the mean of its divisors is an integer number (5269495).

Almost surely, 2^10538989 is an apocalyptic number.

It is an amenable number.

10538989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10538989 is an equidigital number, since it uses as much as digits as its factorization.

10538989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 10538989 is about 3246.3809080267. The cubic root of 10538989 is about 219.2466588321.

The spelling of 10538989 in words is "ten million, five hundred thirty-eight thousand, nine hundred eighty-nine".