3572321 has 2 divisors, whose sum is σ = 3572322. Its totient is φ = 3572320.

The previous prime is 3572287. The next prime is 3572339. The reversal of 3572321 is 1232753.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3097600 + 474721 = 1760^2 + 689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3572321 is a prime.

It is a super-2 number, since 2×3572321² = 25522954654082, which contains 22 as substring.

It is a Chen prime.

It is equal to p₂₅₄₉₀₃ and since 3572321 and 254903 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (3572351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1786160 + 1786161.

It is an arithmetic number, because the mean of its divisors is an integer number (1786161).

Almost surely, 2^3572321 is an apocalyptic number.

It is an amenable number.

3572321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3572321 is an equidigital number, since it uses as much as digits as its factorization.

3572321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 23.

The square root of 3572321 is about 1890.0584647042. The cubic root of 3572321 is about 152.8680851381.

The spelling of 3572321 in words is "three million, five hundred seventy-two thousand, three hundred twenty-one".