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3909401 is a prime number
BaseRepresentation
bin1110111010011100011001
321100121200122
432322130121
52000100101
6215443025
745141446
oct16723431
97317618
103909401
112230211
121386475
13a6b572
1473a9cd
1552351b
hex3ba719

3909401 has 2 divisors, whose sum is σ = 3909402. Its totient is φ = 3909400.

The previous prime is 3909397. The next prime is 3909427. The reversal of 3909401 is 1049093.

It is a happy number.

It is an a-pointer prime, because the next prime (3909427) can be obtained adding 3909401 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3097600 + 811801 = 1760^2 + 901^2 .

It is an emirp because it is prime and its reverse (1049093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3909401 - 22 = 3909397 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3909481) 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, 1954700 + 1954701.

It is an arithmetic number, because the mean of its divisors is an integer number (1954701).

Almost surely, 23909401 is an apocalyptic number.

It is an amenable number.

3909401 is a deficient number, since it is larger than the sum of its proper divisors (1).

3909401 is an equidigital number, since it uses as much as digits as its factorization.

3909401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 3909401 is about 1977.2205238668. The cubic root of 3909401 is about 157.5324666420.

The spelling of 3909401 in words is "three million, nine hundred nine thousand, four hundred one".