7047081 has 30 divisors (see below), whose sum is σ = 11156442. Its totient is φ = 4432320.

The previous prime is 7047059. The next prime is 7047083. The reversal of 7047081 is 1807407.

It can be written as a sum of positive squares in only one way, i.e., 6579225 + 467856 = 2565^2 + 684^2 .

It is not a de Polignac number, because 7047081 - 2⁵ = 7047049 is a prime.

It is a super-2 number, since 2×7047081² = 99322701241122, which contains 22 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7047083) 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 29 ways as a sum of consecutive naturals, for example, 29121 + ... + 29361.

Almost surely, 2^7047081 is an apocalyptic number.

It is an amenable number.

7047081 is a deficient number, since it is larger than the sum of its proper divisors (4109361).

7047081 is a wasteful number, since it uses less digits than its factorization.

7047081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 7047081 is about 2654.6338730605. The cubic root of 7047081 is about 191.7210304097.

7047081 divided by its sum of digits (27) gives a triangular number (261003 = T₇₂₂).

The spelling of 7047081 in words is "seven million, forty-seven thousand, eighty-one".