7036921 has 2 divisors, whose sum is σ = 7036922. Its totient is φ = 7036920.

The previous prime is 7036903. The next prime is 7036933. The reversal of 7036921 is 1296307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5107600 + 1929321 = 2260^2 + 1389^2 .

It is a cyclic number.

It is not a de Polignac number, because 7036921 - 2⁵ = 7036889 is a prime.

It is a Chen prime.

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

It is equal to p₄₇₉₀₀₈ and since 7036921 and 479008 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7036921.

It is not a weakly prime, because it can be changed into another prime (7036901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3518460 + 3518461.

It is an arithmetic number, because the mean of its divisors is an integer number (3518461).

Almost surely, 2^7036921 is an apocalyptic number.

It is an amenable number.

7036921 is a deficient number, since it is larger than the sum of its proper divisors (1).

7036921 is an equidigital number, since it uses as much as digits as its factorization.

7036921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 7036921 is about 2652.7195479357. The cubic root of 7036921 is about 191.6288493336.

The spelling of 7036921 in words is "seven million, thirty-six thousand, nine hundred twenty-one".