126686393 has 8 divisors (see below), whose sum is σ = 129029760. Its totient is φ = 124349680.

The previous prime is 126686389. The next prime is 126686401. The reversal of 126686393 is 393686621.

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

It is a cyclic number.

It is not a de Polignac number, because 126686393 - 2² = 126686389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126686383) 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, 52571 + ... + 54927.

It is an arithmetic number, because the mean of its divisors is an integer number (16128720).

Almost surely, 2^126686393 is an apocalyptic number.

It is an amenable number.

126686393 is a deficient number, since it is larger than the sum of its proper divisors (2343367).

126686393 is an equidigital number, since it uses as much as digits as its factorization.

126686393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3327.

The product of its digits is 279936, while the sum is 44.

The square root of 126686393 is about 11255.5050086613. The cubic root of 126686393 is about 502.2384873928.

The spelling of 126686393 in words is "one hundred twenty-six million, six hundred eighty-six thousand, three hundred ninety-three".