10406989 has 8 divisors (see below), whose sum is σ = 10910592. Its totient is φ = 9915360.

The previous prime is 10406983. The next prime is 10407011. The reversal of 10406989 is 98960401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10406989 - 2⁹ = 10406477 is a prime.

It is a super-2 number, since 2×10406989² = 216610840092242, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10406983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189 + ... + 4714.

It is an arithmetic number, because the mean of its divisors is an integer number (1363824).

Almost surely, 2^10406989 is an apocalyptic number.

It is an amenable number.

10406989 is a deficient number, since it is larger than the sum of its proper divisors (503603).

10406989 is an equidigital number, since it uses as much as digits as its factorization.

10406989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5987.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 10406989 is about 3225.9865157809. The cubic root of 10406989 is about 218.3274614637.

The spelling of 10406989 in words is "ten million, four hundred six thousand, nine hundred eighty-nine".