4121629 has 2 divisors, whose sum is σ = 4121630. Its totient is φ = 4121628.

The previous prime is 4121609. The next prime is 4121641. The reversal of 4121629 is 9261214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4120900 + 729 = 2030^2 + 27^2 .

It is a cyclic number.

It is not a de Polignac number, because 4121629 - 2¹³ = 4113437 is a prime.

It is a super-2 number, since 2×4121629² = 33975651227282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4121609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060814 + 2060815.

It is an arithmetic number, because the mean of its divisors is an integer number (2060815).

Almost surely, 2^4121629 is an apocalyptic number.

It is an amenable number.

4121629 is a deficient number, since it is larger than the sum of its proper divisors (1).

4121629 is an equidigital number, since it uses as much as digits as its factorization.

4121629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 4121629 is about 2030.1795487099. The cubic root of 4121629 is about 160.3330173282. Note that the first 3 decimals are identical.

The spelling of 4121629 in words is "four million, one hundred twenty-one thousand, six hundred twenty-nine".