7075021 has 2 divisors, whose sum is σ = 7075022. Its totient is φ = 7075020.

The previous prime is 7074971. The next prime is 7075027. The reversal of 7075021 is 1205707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6702921 + 372100 = 2589^2 + 610^2 .

It is an emirp because it is prime and its reverse (1205707) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7075021 - 2¹⁵ = 7042253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7074983 and 7075001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7075027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3537510 + 3537511.

It is an arithmetic number, because the mean of its divisors is an integer number (3537511).

Almost surely, 2^7075021 is an apocalyptic number.

It is an amenable number.

7075021 is a deficient number, since it is larger than the sum of its proper divisors (1).

7075021 is an equidigital number, since it uses as much as digits as its factorization.

7075021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 7075021 is about 2659.8911631869. The cubic root of 7075021 is about 191.9740723814.

The spelling of 7075021 in words is "seven million, seventy-five thousand, twenty-one".