126928799 has 8 divisors (see below), whose sum is σ = 129526992. Its totient is φ = 124338240.

The previous prime is 126928777. The next prime is 126928801. The reversal of 126928799 is 997829621.

126928799 = T₂₁₆₂ + T₂₁₆₃ + ... + T₂₂₁₄.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126928799 is a prime.

It is a super-3 number, since 3×126928799³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126928799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126928709) 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, 41507 + ... + 44459.

It is an arithmetic number, because the mean of its divisors is an integer number (16190874).

Almost surely, 2^126928799 is an apocalyptic number.

126928799 is a deficient number, since it is larger than the sum of its proper divisors (2598193).

126928799 is an equidigital number, since it uses as much as digits as its factorization.

126928799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817.

The product of its digits is 979776, while the sum is 53.

The square root of 126928799 is about 11266.2681931507. The cubic root of 126928799 is about 502.5586166285.

The spelling of 126928799 in words is "one hundred twenty-six million, nine hundred twenty-eight thousand, seven hundred ninety-nine".