126879673 has 4 divisors (see below), whose sum is σ = 127805940. Its totient is φ = 125953408.

The previous prime is 126879671. The next prime is 126879679. The reversal of 126879673 is 376978621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56370064 + 70509609 = 7508^2 + 8397^2 .

It is a cyclic number.

It is not a de Polignac number, because 126879673 - 2¹ = 126879671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126879671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462928 + ... + 463201.

It is an arithmetic number, because the mean of its divisors is an integer number (31951485).

Almost surely, 2^126879673 is an apocalyptic number.

It is an amenable number.

126879673 is a deficient number, since it is larger than the sum of its proper divisors (926267).

126879673 is an equidigital number, since it uses as much as digits as its factorization.

126879673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926266.

The product of its digits is 762048, while the sum is 49.

The square root of 126879673 is about 11264.0877571155. The cubic root of 126879673 is about 502.4937721892.

The spelling of 126879673 in words is "one hundred twenty-six million, eight hundred seventy-nine thousand, six hundred seventy-three".