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8107961 is a prime number
BaseRepresentation
bin11110111011011110111001
3120020221000212
4132323132321
54033423321
6445440505
7125626241
oct36733671
916227025
108107961
1146386a4
122870135
1318ab614
141110b21
15aa255b
hex7bb7b9

8107961 has 2 divisors, whose sum is σ = 8107962. Its totient is φ = 8107960.

The previous prime is 8107949. The next prime is 8107973. The reversal of 8107961 is 1697018.

It is a balanced prime because it is at equal distance from previous prime (8107949) and next prime (8107973).

It can be written as a sum of positive squares in only one way, i.e., 7812025 + 295936 = 2795^2 + 544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8107961 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8107261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4053980 + 4053981.

It is an arithmetic number, because the mean of its divisors is an integer number (4053981).

Almost surely, 28107961 is an apocalyptic number.

It is an amenable number.

8107961 is a deficient number, since it is larger than the sum of its proper divisors (1).

8107961 is an equidigital number, since it uses as much as digits as its factorization.

8107961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 8107961 is about 2847.4481558055. The cubic root of 8107961 is about 200.8956579963.

The spelling of 8107961 in words is "eight million, one hundred seven thousand, nine hundred sixty-one".