126628779 has 12 divisors (see below), whose sum is σ = 170243304. Its totient is φ = 83722464.

The previous prime is 126628771. The next prime is 126628781. The reversal of 126628779 is 977826621.

It is not a de Polignac number, because 126628779 - 2³ = 126628771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126628771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47079 + ... + 49695.

It is an arithmetic number, because the mean of its divisors is an integer number (14186942).

Almost surely, 2^126628779 is an apocalyptic number.

126628779 is a deficient number, since it is larger than the sum of its proper divisors (43614525).

126628779 is an equidigital number, since it uses as much as digits as its factorization.

126628779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2874 (or 2747 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 126628779 is about 11252.9453477745. The cubic root of 126628779 is about 502.1623404205.

The spelling of 126628779 in words is "one hundred twenty-six million, six hundred twenty-eight thousand, seven hundred seventy-nine".