4352921 has 2 divisors, whose sum is σ = 4352922. Its totient is φ = 4352920.

The previous prime is 4352903. The next prime is 4352941. The reversal of 4352921 is 1292534.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2560000 + 1792921 = 1600^2 + 1339^2 .

It is a cyclic number.

It is not a de Polignac number, because 4352921 - 2⁶ = 4352857 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p₃₀₆₂₆₉ and since 4352921 and 306269 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 (4352941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2176460 + 2176461.

It is an arithmetic number, because the mean of its divisors is an integer number (2176461).

Almost surely, 2^4352921 is an apocalyptic number.

It is an amenable number.

4352921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4352921 is an equidigital number, since it uses as much as digits as its factorization.

4352921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 4352921 is about 2086.3655000982. The cubic root of 4352921 is about 163.2777204345.

The spelling of 4352921 in words is "four million, three hundred fifty-two thousand, nine hundred twenty-one".