126789393 has 16 divisors (see below), whose sum is σ = 173946176. Its totient is φ = 82114560.

The previous prime is 126789361. The next prime is 126789401. The reversal of 126789393 is 393987621.

It is not a de Polignac number, because 126789393 - 2⁵ = 126789361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126789323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10353 + ... + 18993.

It is an arithmetic number, because the mean of its divisors is an integer number (10871636).

Almost surely, 2^126789393 is an apocalyptic number.

It is an amenable number.

126789393 is a deficient number, since it is larger than the sum of its proper divisors (47156783).

126789393 is an equidigital number, since it uses as much as digits as its factorization.

126789393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8784.

The product of its digits is 489888, while the sum is 48.

The square root of 126789393 is about 11260.0796178357. The cubic root of 126789393 is about 502.3745623882.

The spelling of 126789393 in words is "one hundred twenty-six million, seven hundred eighty-nine thousand, three hundred ninety-three".