4486421 has 2 divisors, whose sum is σ = 4486422. Its totient is φ = 4486420.

The previous prime is 4486411. The next prime is 4486429. The reversal of 4486421 is 1246844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4363921 + 122500 = 2089^2 + 350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4486421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4486429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2243210 + 2243211.

It is an arithmetic number, because the mean of its divisors is an integer number (2243211).

Almost surely, 2^4486421 is an apocalyptic number.

It is an amenable number.

4486421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4486421 is an equidigital number, since it uses as much as digits as its factorization.

4486421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6144, while the sum is 29.

The square root of 4486421 is about 2118.1173244181. The cubic root of 4486421 is about 164.9301326480.

The spelling of 4486421 in words is "four million, four hundred eighty-six thousand, four hundred twenty-one".