126897704 has 32 divisors (see below), whose sum is σ = 242161920. Its totient is φ = 62330496.

The previous prime is 126897703. The next prime is 126897709. The reversal of 126897704 is 407798621.

It is a super-2 number, since 2×126897704² = 32206054560943232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (126897703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147644 + ... + 148500.

It is an arithmetic number, because the mean of its divisors is an integer number (7567560).

Almost surely, 2^126897704 is an apocalyptic number.

It is an amenable number.

126897704 is a deficient number, since it is larger than the sum of its proper divisors (115264216).

126897704 is a wasteful number, since it uses less digits than its factorization.

126897704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 126897704 is about 11264.8881041935. Note that the first 3 decimals coincide. The cubic root of 126897704 is about 502.5175743629.

The spelling of 126897704 in words is "one hundred twenty-six million, eight hundred ninety-seven thousand, seven hundred four".