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3946213 is a prime number
BaseRepresentation
bin1111000011011011100101
321102111012001
433003123211
52002234323
6220325301
745353665
oct17033345
97374161
103946213
112255937
1213a3831
13a8224b
1474a1a5
1552e3ad
hex3c36e5

3946213 has 2 divisors, whose sum is σ = 3946214. Its totient is φ = 3946212.

The previous prime is 3946211. The next prime is 3946219. The reversal of 3946213 is 3126493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3932289 + 13924 = 1983^2 + 118^2 .

It is a cyclic number.

It is not a de Polignac number, because 3946213 - 21 = 3946211 is a prime.

Together with 3946211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3946211) 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, 1973106 + 1973107.

It is an arithmetic number, because the mean of its divisors is an integer number (1973107).

Almost surely, 23946213 is an apocalyptic number.

It is an amenable number.

3946213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3946213 is an equidigital number, since it uses as much as digits as its factorization.

3946213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 28.

The square root of 3946213 is about 1986.5077397282. The cubic root of 3946213 is about 158.0253791417.

The spelling of 3946213 in words is "three million, nine hundred forty-six thousand, two hundred thirteen".