7086021 has 4 divisors (see below), whose sum is σ = 9448032. Its totient is φ = 4724012.

The previous prime is 7085999. The next prime is 7086029. The reversal of 7086021 is 1206807.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7086021 - 2⁹ = 7085509 is a prime.

It is a super-2 number, since 2×7086021² = 100423387224882, which contains 22 as substring.

7086021 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7085982 and 7086000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7086029) 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 3 ways as a sum of consecutive naturals, for example, 1181001 + ... + 1181006.

It is an arithmetic number, because the mean of its divisors is an integer number (2362008).

Almost surely, 2^7086021 is an apocalyptic number.

It is an amenable number.

7086021 is a deficient number, since it is larger than the sum of its proper divisors (2362011).

7086021 is a wasteful number, since it uses less digits than its factorization.

7086021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362010.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 7086021 is about 2661.9581138703. The cubic root of 7086021 is about 192.0735124318.

The spelling of 7086021 in words is "seven million, eighty-six thousand, twenty-one".