12988935 has 24 divisors (see below), whose sum is σ = 23839920. Its totient is φ = 6519552.

The previous prime is 12988931. The next prime is 12988957. The reversal of 12988935 is 53988921.

Added to its reverse (53988921) it gives a square (66977856 = 8184²).

It is a happy number.

It is not a de Polignac number, because 12988935 - 2² = 12988931 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 (12988931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7725 + ... + 9254.

It is an arithmetic number, because the mean of its divisors is an integer number (993330).

Almost surely, 2^12988935 is an apocalyptic number.

12988935 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12988935 is a deficient number, since it is larger than the sum of its proper divisors (10850985).

12988935 is a wasteful number, since it uses less digits than its factorization.

12988935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17007 (or 17004 counting only the distinct ones).

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

The square root of 12988935 is about 3604.0165093961. The cubic root of 12988935 is about 235.0667382504.

Adding to 12988935 its reverse (53988921), we get a square (66977856 = 8184²).

The spelling of 12988935 in words is "twelve million, nine hundred eighty-eight thousand, nine hundred thirty-five".