12989001 has 4 divisors (see below), whose sum is σ = 17318672. Its totient is φ = 8659332.

The previous prime is 12988957. The next prime is 12989017. The reversal of 12989001 is 10098921.

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 not a de Polignac number, because 12989001 - 2⁹ = 12988489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12989001.

It is not an unprimeable number, because it can be changed into a prime (12989201) 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, 2164831 + ... + 2164836.

It is an arithmetic number, because the mean of its divisors is an integer number (4329668).

Almost surely, 2^12989001 is an apocalyptic number.

It is an amenable number.

12989001 is a deficient number, since it is larger than the sum of its proper divisors (4329671).

12989001 is an equidigital number, since it uses as much as digits as its factorization.

12989001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329670.

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 12989001 is about 3604.0256658354. The cubic root of 12989001 is about 235.0671363939.

The spelling of 12989001 in words is "twelve million, nine hundred eighty-nine thousand, one".