126777897 has 12 divisors (see below), whose sum is σ = 183306240. Its totient is φ = 84434328.

The previous prime is 126777839. The next prime is 126777901. The reversal of 126777897 is 798777621.

It is not a de Polignac number, because 126777897 - 2⁸ = 126777641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126777697) 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, 3304 + ... + 16262.

It is an arithmetic number, because the mean of its divisors is an integer number (15275520).

Almost surely, 2^126777897 is an apocalyptic number.

It is an amenable number.

126777897 is a deficient number, since it is larger than the sum of its proper divisors (56528343).

126777897 is a wasteful number, since it uses less digits than its factorization.

126777897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14052 (or 14049 counting only the distinct ones).

The product of its digits is 2074464, while the sum is 54.

The square root of 126777897 is about 11259.5691302998. The cubic root of 126777897 is about 502.3593784878.

The spelling of 126777897 in words is "one hundred twenty-six million, seven hundred seventy-seven thousand, eight hundred ninety-seven".