12702989 has 8 divisors (see below), whose sum is σ = 14014392. Its totient is φ = 11439360.

The previous prime is 12702979. The next prime is 12703003. The reversal of 12702989 is 98920721.

It can be written as a sum of positive squares in 4 ways, for example, as 220900 + 12482089 = 470^2 + 3533^2 .

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 12702989 - 2⁴ = 12702973 is a prime.

It is a super-2 number, since 2×12702989² = 322731859068242, 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 (12702919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11384 + ... + 12449.

It is an arithmetic number, because the mean of its divisors is an integer number (1751799).

Almost surely, 2^12702989 is an apocalyptic number.

It is an amenable number.

12702989 is a deficient number, since it is larger than the sum of its proper divisors (1311403).

12702989 is a wasteful number, since it uses less digits than its factorization.

12702989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23887.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 12702989 is about 3564.1252783818. The cubic root of 12702989 is about 233.3289575143.

The spelling of 12702989 in words is "twelve million, seven hundred two thousand, nine hundred eighty-nine".