12889465 has 8 divisors (see below), whose sum is σ = 15827328. Its totient is φ = 10071600.

The previous prime is 12889447. The next prime is 12889469. The reversal of 12889465 is 56498821.

It is a happy number.

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

It is not a de Polignac number, because 12889465 - 2⁵ = 12889433 is a prime.

It is a super-2 number, since 2×12889465² = 332276615972450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12889469) 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, 29761 + ... + 30190.

It is an arithmetic number, because the mean of its divisors is an integer number (1978416).

Almost surely, 2^12889465 is an apocalyptic number.

It is an amenable number.

12889465 is a deficient number, since it is larger than the sum of its proper divisors (2937863).

12889465 is an equidigital number, since it uses as much as digits as its factorization.

12889465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59999.

The product of its digits is 138240, while the sum is 43.

The square root of 12889465 is about 3590.1901063871. The cubic root of 12889465 is about 234.4651484918.

The spelling of 12889465 in words is "twelve million, eight hundred eighty-nine thousand, four hundred sixty-five".