126977894 has 16 divisors (see below), whose sum is σ = 199141632. Its totient is φ = 60608328.

The previous prime is 126977887. The next prime is 126977897. The reversal of 126977894 is 498779621.

It is a super-2 number, since 2×126977894² = 32246771129350472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126977897) 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, 23447 + ... + 28349.

It is an arithmetic number, because the mean of its divisors is an integer number (12446352).

Almost surely, 2^126977894 is an apocalyptic number.

126977894 is a deficient number, since it is larger than the sum of its proper divisors (72163738).

126977894 is a wasteful number, since it uses less digits than its factorization.

126977894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491.

The product of its digits is 1524096, while the sum is 53.

The square root of 126977894 is about 11268.4468317510. The cubic root of 126977894 is about 502.6234034356.

The spelling of 126977894 in words is "one hundred twenty-six million, nine hundred seventy-seven thousand, eight hundred ninety-four".