12932989 has 8 divisors (see below), whose sum is σ = 13133120. Its totient is φ = 12734496.

The previous prime is 12932957. The next prime is 12933013. The reversal of 12932989 is 98923921.

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

It is a 4-Lehmer number, since φ(12932989) divides (12932989-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 12932989 - 2⁵ = 12932957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12932789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31417 + ... + 31825.

It is an arithmetic number, because the mean of its divisors is an integer number (1641640).

It is a Poulet number, since it divides 2^12932988-1.

Almost surely, 2^12932989 is an apocalyptic number.

It is an amenable number.

12932989 is a deficient number, since it is larger than the sum of its proper divisors (200131).

12932989 is a wasteful number, since it uses less digits than its factorization.

12932989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819.

The product of its digits is 69984, while the sum is 43.

The square root of 12932989 is about 3596.2465154658. The cubic root of 12932989 is about 234.7287590278.

The spelling of 12932989 in words is "twelve million, nine hundred thirty-two thousand, nine hundred eighty-nine".