4213949 has 2 divisors, whose sum is σ = 4213950. Its totient is φ = 4213948.

The previous prime is 4213907. The next prime is 4213969. The reversal of 4213949 is 9493124.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4202500 + 11449 = 2050^2 + 107^2 .

It is a cyclic number.

It is not a de Polignac number, because 4213949 - 2¹² = 4209853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4213969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2106974 + 2106975.

It is an arithmetic number, because the mean of its divisors is an integer number (2106975).

Almost surely, 2^4213949 is an apocalyptic number.

It is an amenable number.

4213949 is a deficient number, since it is larger than the sum of its proper divisors (1).

4213949 is an equidigital number, since it uses as much as digits as its factorization.

4213949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 4213949 is about 2052.7905397288. The cubic root of 4213949 is about 161.5212840215.

The spelling of 4213949 in words is "four million, two hundred thirteen thousand, nine hundred forty-nine".