7081000 has 64 divisors (see below), whose sum is σ = 16969680. Its totient is φ = 2764800.

The previous prime is 7080991. The next prime is 7081001. The reversal of 7081000 is 1807.

It can be written as a sum of positive squares in 8 ways, for example, as 248004 + 6832996 = 498^2 + 2614^2 .

It is a super-2 number, since 2×7081000² = 100281122000000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7081001) 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, 72952 + ... + 73048.

Almost surely, 2^7081000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7081000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8484840).

7081000 is an abundant number, since it is smaller than the sum of its proper divisors (9888680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7081000 is a wasteful number, since it uses less digits than its factorization.

7081000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 7081000 is about 2661.0148440022. The cubic root of 7081000 is about 192.0281353445.

Adding to 7081000 its reverse (1807), we get a palindrome (7082807).

The spelling of 7081000 in words is "seven million, eighty-one thousand".