7036021 has 2 divisors, whose sum is σ = 7036022. Its totient is φ = 7036020.

The previous prime is 7035989. The next prime is 7036049. The reversal of 7036021 is 1206307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4431025 + 2604996 = 2105^2 + 1614^2 .

It is an emirp because it is prime and its reverse (1206307) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7036021 - 2⁵ = 7035989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7036021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7036921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3518010 + 3518011.

It is an arithmetic number, because the mean of its divisors is an integer number (3518011).

Almost surely, 2^7036021 is an apocalyptic number.

It is an amenable number.

7036021 is a deficient number, since it is larger than the sum of its proper divisors (1).

7036021 is an equidigital number, since it uses as much as digits as its factorization.

7036021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 7036021 is about 2652.5499052798. The cubic root of 7036021 is about 191.6206794102.

It can be divided in two parts, 703 and 6021, that added together give a square (6724 = 82²).

The spelling of 7036021 in words is "seven million, thirty-six thousand, twenty-one".