126828897 has 16 divisors (see below), whose sum is σ = 184312128. Its totient is φ = 77106240.

The previous prime is 126828883. The next prime is 126828907. The reversal of 126828897 is 798828621.

It is a happy number.

It is not a de Polignac number, because 126828897 - 2⁴ = 126828881 is a prime.

It is a super-2 number, since 2×126828897² = 32171138228473218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126828817) 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 15 ways as a sum of consecutive naturals, for example, 16354 + ... + 22827.

It is an arithmetic number, because the mean of its divisors is an integer number (11519508).

Almost surely, 2^126828897 is an apocalyptic number.

It is an amenable number.

126828897 is a deficient number, since it is larger than the sum of its proper divisors (57483231).

126828897 is a wasteful number, since it uses less digits than its factorization.

126828897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39280.

The product of its digits is 774144, while the sum is 51.

The square root of 126828897 is about 11261.8336428843. The cubic root of 126828897 is about 502.4267322200.

The spelling of 126828897 in words is "one hundred twenty-six million, eight hundred twenty-eight thousand, eight hundred ninety-seven".