7830081 has 32 divisors (see below), whose sum is σ = 14042880. Its totient is φ = 4209408.

The previous prime is 7830077. The next prime is 7830101. The reversal of 7830081 is 1800387.

7830081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7830081 - 2² = 7830077 is a prime.

It is a super-2 number, since 2×7830081² = 122620336933122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7830041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1995 + ... + 4431.

It is an arithmetic number, because the mean of its divisors is an integer number (438840).

Almost surely, 2^7830081 is an apocalyptic number.

It is an amenable number.

7830081 is a deficient number, since it is larger than the sum of its proper divisors (6212799).

7830081 is a wasteful number, since it uses less digits than its factorization.

7830081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2464 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 7830081 is about 2798.2281894084. The cubic root of 7830081 is about 198.5738631735.

The spelling of 7830081 in words is "seven million, eight hundred thirty thousand, eighty-one".