12009735 has 32 divisors (see below), whose sum is σ = 22610880. Its totient is φ = 6027264.

The previous prime is 12009733. The next prime is 12009737. The reversal of 12009735 is 53790021.

It is an interprime number because it is at equal distance from previous prime (12009733) and next prime (12009737).

It is not a de Polignac number, because 12009735 - 2¹ = 12009733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12009699 and 12009708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12009733) 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 31 ways as a sum of consecutive naturals, for example, 322 + ... + 4911.

It is an arithmetic number, because the mean of its divisors is an integer number (706590).

Almost surely, 2^12009735 is an apocalyptic number.

12009735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12009735 is a deficient number, since it is larger than the sum of its proper divisors (10601145).

12009735 is a wasteful number, since it uses less digits than its factorization.

12009735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5264 (or 5258 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 12009735 is about 3465.5064564938. The cubic root of 12009735 is about 229.0047417387.

Adding to 12009735 its reverse (53790021), we get a palindrome (65799756).

The spelling of 12009735 in words is "twelve million, nine thousand, seven hundred thirty-five".