12690734 has 8 divisors (see below), whose sum is σ = 21755568. Its totient is φ = 5438880.

The previous prime is 12690731. The next prime is 12690739. The reversal of 12690734 is 43709621.

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

It is a super-2 number, since 2×12690734² = 322109458917512, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12690734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12690731) 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 3 ways as a sum of consecutive naturals, for example, 453227 + ... + 453254.

It is an arithmetic number, because the mean of its divisors is an integer number (2719446).

Almost surely, 2^12690734 is an apocalyptic number.

12690734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12690734 is a deficient number, since it is larger than the sum of its proper divisors (9064834).

12690734 is an equidigital number, since it uses as much as digits as its factorization.

12690734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906490.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 12690734 is about 3562.4056478734. The cubic root of 12690734 is about 233.2538999458.

The spelling of 12690734 in words is "twelve million, six hundred ninety thousand, seven hundred thirty-four".