7058921 has 2 divisors, whose sum is σ = 7058922. Its totient is φ = 7058920.

The previous prime is 7058903. The next prime is 7058939. The reversal of 7058921 is 1298507.

It is a balanced prime because it is at equal distance from previous prime (7058903) and next prime (7058939).

It can be written as a sum of positive squares in only one way, i.e., 4999696 + 2059225 = 2236^2 + 1435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7058921 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7058951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3529460 + 3529461.

It is an arithmetic number, because the mean of its divisors is an integer number (3529461).

Almost surely, 2^7058921 is an apocalyptic number.

It is an amenable number.

7058921 is a deficient number, since it is larger than the sum of its proper divisors (1).

7058921 is an equidigital number, since it uses as much as digits as its factorization.

7058921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 7058921 is about 2656.8629998553. The cubic root of 7058921 is about 191.8283423072.

The spelling of 7058921 in words is "seven million, fifty-eight thousand, nine hundred twenty-one".