7126881 has 16 divisors (see below), whose sum is σ = 10113600. Its totient is φ = 4451328.

The previous prime is 7126871. The next prime is 7126883. The reversal of 7126881 is 1886217.

It is a happy number.

It is not a de Polignac number, because 7126881 - 2⁶ = 7126817 is a prime.

It is a super-2 number, since 2×7126881² = 101584865576322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7126883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4885 + ... + 6173.

It is an arithmetic number, because the mean of its divisors is an integer number (632100).

Almost surely, 2^7126881 is an apocalyptic number.

It is an amenable number.

7126881 is a deficient number, since it is larger than the sum of its proper divisors (2986719).

7126881 is a wasteful number, since it uses less digits than its factorization.

7126881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408.

The product of its digits is 5376, while the sum is 33.

The square root of 7126881 is about 2669.6218833385. The cubic root of 7126881 is about 192.4419884789.

The spelling of 7126881 in words is "seven million, one hundred twenty-six thousand, eight hundred eighty-one".