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3949061 is a prime number
BaseRepresentation
bin1111000100001000000101
321102122002112
433010020011
52002332221
6220350405
745365204
oct17041005
97378075
103949061
112257a96
1213a5405
13a8362c
1474b23b
1553015b
hex3c4205

3949061 has 2 divisors, whose sum is σ = 3949062. Its totient is φ = 3949060.

The previous prime is 3949051. The next prime is 3949063. The reversal of 3949061 is 1609493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3940225 + 8836 = 1985^2 + 94^2 .

It is an emirp because it is prime and its reverse (1609493) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3949061 is a prime.

It is a Sophie Germain prime.

Together with 3949063, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is equal to p279860 and since 3949061 and 279860 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3949063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974530 + 1974531.

It is an arithmetic number, because the mean of its divisors is an integer number (1974531).

Almost surely, 23949061 is an apocalyptic number.

It is an amenable number.

3949061 is a deficient number, since it is larger than the sum of its proper divisors (1).

3949061 is an equidigital number, since it uses as much as digits as its factorization.

3949061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 3949061 is about 1987.2244463070. The cubic root of 3949061 is about 158.0633858800.

The spelling of 3949061 in words is "three million, nine hundred forty-nine thousand, sixty-one".