7798081 has 8 divisors (see below), whose sum is σ = 8400384. Its totient is φ = 7217760.

The previous prime is 7798073. The next prime is 7798097. The reversal of 7798081 is 1808977.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7798081 - 2³ = 7798073 is a prime.

It is a super-2 number, since 2×7798081² = 121620134565122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7793081) 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, 4756 + ... + 6181.

It is an arithmetic number, because the mean of its divisors is an integer number (1050048).

Almost surely, 2^7798081 is an apocalyptic number.

It is an amenable number.

7798081 is a deficient number, since it is larger than the sum of its proper divisors (602303).

7798081 is a wasteful number, since it uses less digits than its factorization.

7798081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10991.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 7798081 is about 2792.5044315095. The cubic root of 7798081 is about 198.3029830607.

The spelling of 7798081 in words is "seven million, seven hundred ninety-eight thousand, eighty-one".