332861021 has 2 divisors, whose sum is σ = 332861022. Its totient is φ = 332861020.

The previous prime is 332860999. The next prime is 332861027. The reversal of 332861021 is 120168233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262116100 + 70744921 = 16190^2 + 8411^2 .

It is a cyclic number.

It is not a de Polignac number, because 332861021 - 2¹⁰ = 332859997 is a prime.

It is a super-2 number, since 2×332861021² = 221592918602324882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (332861027) 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, 166430510 + 166430511.

It is an arithmetic number, because the mean of its divisors is an integer number (166430511).

Almost surely, 2^332861021 is an apocalyptic number.

It is an amenable number.

332861021 is a deficient number, since it is larger than the sum of its proper divisors (1).

332861021 is an equidigital number, since it uses as much as digits as its factorization.

332861021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 332861021 is about 18244.4791923475. The cubic root of 332861021 is about 693.0336364731.

The spelling of 332861021 in words is "three hundred thirty-two million, eight hundred sixty-one thousand, twenty-one".