126647856 has 60 divisors (see below), whose sum is σ = 358131592. Its totient is φ = 41776128.

The previous prime is 126647827. The next prime is 126647861. The reversal of 126647856 is 658746621.

126647856 is a `hidden beast` number, since 126 + 6 + 478 + 56 = 666.

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9435 + ... + 18501.

Almost surely, 2^126647856 is an apocalyptic number.

126647856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126647856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179065796).

126647856 is an abundant number, since it is smaller than the sum of its proper divisors (231483736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126647856 is a wasteful number, since it uses less digits than its factorization.

126647856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9178 (or 9169 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 126647856 is about 11253.7929605978. The cubic root of 126647856 is about 502.1875565681.

The spelling of 126647856 in words is "one hundred twenty-six million, six hundred forty-seven thousand, eight hundred fifty-six".