12889935 has 36 divisors (see below), whose sum is σ = 23397192. Its totient is φ = 6807888.

The previous prime is 12889909. The next prime is 12889939. The reversal of 12889935 is 53998821.

It is a happy number.

It is not a de Polignac number, because 12889935 - 2⁹ = 12889423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12889939) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 125094 + ... + 125196.

It is an arithmetic number, because the mean of its divisors is an integer number (649922).

Almost surely, 2^12889935 is an apocalyptic number.

12889935 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12889935 is a deficient number, since it is larger than the sum of its proper divisors (10507257).

12889935 is an frugal number, since it uses more digits than its factorization.

12889935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 111 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 12889935 is about 3590.2555619343. The cubic root of 12889935 is about 234.4679982941.

It can be divided in two parts, 12889 and 935, that added together give a cube (13824 = 24³).

The spelling of 12889935 in words is "twelve million, eight hundred eighty-nine thousand, nine hundred thirty-five".