10718989 has 4 divisors (see below), whose sum is σ = 11185056. Its totient is φ = 10252924.

The previous prime is 10718971. The next prime is 10719041. The reversal of 10718989 is 98981701.

10718989 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10718989 - 2¹¹ = 10716941 is a prime.

It is a super-2 number, since 2×10718989² = 229793450364242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10718909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232999 + ... + 233044.

It is an arithmetic number, because the mean of its divisors is an integer number (2796264).

Almost surely, 2^10718989 is an apocalyptic number.

It is an amenable number.

10718989 is a deficient number, since it is larger than the sum of its proper divisors (466067).

10718989 is an equidigital number, since it uses as much as digits as its factorization.

10718989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466066.

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 10718989 is about 3273.9867134733. The cubic root of 10718989 is about 220.4878224739.

The spelling of 10718989 in words is "ten million, seven hundred eighteen thousand, nine hundred eighty-nine".