4965421 has 2 divisors, whose sum is σ = 4965422. Its totient is φ = 4965420.

The previous prime is 4965419. The next prime is 4965449. The reversal of 4965421 is 1245694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 2292196 = 1635^2 + 1514^2 .

It is a cyclic number.

It is not a de Polignac number, because 4965421 - 2¹ = 4965419 is a prime.

Together with 4965419, it forms a pair of twin primes.

It is a Chen prime.

4965421 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4965451) 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, 2482710 + 2482711.

It is an arithmetic number, because the mean of its divisors is an integer number (2482711).

Almost surely, 2^4965421 is an apocalyptic number.

It is an amenable number.

4965421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4965421 is an equidigital number, since it uses as much as digits as its factorization.

4965421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

The square root of 4965421 is about 2228.3224631996. The cubic root of 4965421 is about 170.6024873803.

The spelling of 4965421 in words is "four million, nine hundred sixty-five thousand, four hundred twenty-one".