7364821 has 2 divisors, whose sum is σ = 7364822. Its totient is φ = 7364820.

The previous prime is 7364779. The next prime is 7364879. The reversal of 7364821 is 1284637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5948721 + 1416100 = 2439^2 + 1190^2 .

It is a cyclic number.

It is not a de Polignac number, because 7364821 - 2¹⁷ = 7233749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7364891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3682410 + 3682411.

It is an arithmetic number, because the mean of its divisors is an integer number (3682411).

Almost surely, 2^7364821 is an apocalyptic number.

It is an amenable number.

7364821 is a deficient number, since it is larger than the sum of its proper divisors (1).

7364821 is an equidigital number, since it uses as much as digits as its factorization.

7364821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 31.

The square root of 7364821 is about 2713.8203698845. The cubic root of 7364821 is about 194.5602274478.

The spelling of 7364821 in words is "seven million, three hundred sixty-four thousand, eight hundred twenty-one".