10989285 has 32 divisors (see below), whose sum is σ = 18724608. Its totient is φ = 5491200.

The previous prime is 10989269. The next prime is 10989287. The reversal of 10989285 is 58298901.

10989285 = 1101² + 1102² + ... + 1109².

It is a happy number.

It is not a de Polignac number, because 10989285 - 2⁴ = 10989269 is a prime.

It is a super-2 number, since 2×10989285² = 241528769622450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10989287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17985 + ... + 18585.

It is an arithmetic number, because the mean of its divisors is an integer number (585144).

Almost surely, 2^10989285 is an apocalyptic number.

10989285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10989285 is a deficient number, since it is larger than the sum of its proper divisors (7735323).

10989285 is a wasteful number, since it uses less digits than its factorization.

10989285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 10989285 is about 3315.0090497614. The cubic root of 10989285 is about 222.3257736376.

The spelling of 10989285 in words is "ten million, nine hundred eighty-nine thousand, two hundred eighty-five".