12690293 has 8 divisors (see below), whose sum is σ = 15821760. Its totient is φ = 9888480.

The previous prime is 12690281. The next prime is 12690299. The reversal of 12690293 is 39209621.

12690293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12690293 - 2⁴ = 12690277 is a prime.

It is a super-2 number, since 2×12690293² = 322087072851698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12690299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82328 + ... + 82481.

It is an arithmetic number, because the mean of its divisors is an integer number (1977720).

Almost surely, 2^12690293 is an apocalyptic number.

It is an amenable number.

12690293 is a deficient number, since it is larger than the sum of its proper divisors (3131467).

12690293 is a wasteful number, since it uses less digits than its factorization.

12690293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164827.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 12690293 is about 3562.3437509595. The cubic root of 12690293 is about 233.2511980752.

The spelling of 12690293 in words is "twelve million, six hundred ninety thousand, two hundred ninety-three".