7981055 has 4 divisors (see below), whose sum is σ = 9577272. Its totient is φ = 6384840.

The previous prime is 7981049. The next prime is 7981067. The reversal of 7981055 is 5501897.

7981055 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5501897 = 17 ⋅323641.

It is not a de Polignac number, because 7981055 - 2¹⁰ = 7980031 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 798101 + ... + 798110.

It is an arithmetic number, because the mean of its divisors is an integer number (2394318).

Almost surely, 2^7981055 is an apocalyptic number.

7981055 is a deficient number, since it is larger than the sum of its proper divisors (1596217).

7981055 is a wasteful number, since it uses less digits than its factorization.

7981055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596216.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 7981055 is about 2825.0761051696. The cubic root of 7981055 is about 199.8420002132.

The spelling of 7981055 in words is "seven million, nine hundred eighty-one thousand, fifty-five".