126879739 has 8 divisors (see below), whose sum is σ = 152637440. Its totient is φ = 103030056.

The previous prime is 126879703. The next prime is 126879751. The reversal of 126879739 is 937978621.

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 126879739 - 2⁹ = 126879227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126879139) 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, 476859 + ... + 477124.

It is an arithmetic number, because the mean of its divisors is an integer number (19079680).

Almost surely, 2^126879739 is an apocalyptic number.

126879739 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

126879739 is a deficient number, since it is larger than the sum of its proper divisors (25757701).

126879739 is an equidigital number, since it uses as much as digits as its factorization.

126879739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954009.

The product of its digits is 1143072, while the sum is 52.

The square root of 126879739 is about 11264.0906867798. The cubic root of 126879739 is about 502.4938593179.

The spelling of 126879739 in words is "one hundred twenty-six million, eight hundred seventy-nine thousand, seven hundred thirty-nine".