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1961963 is a prime number
BaseRepresentation
bin111011110111111101011
310200200022022
413132333223
51000240323
6110015055
722451003
oct7367753
93620268
101961963
111120063
127a748b
13539033
14391003
1528b4c8
hex1defeb

1961963 has 2 divisors, whose sum is σ = 1961964. Its totient is φ = 1961962.

The previous prime is 1961957. The next prime is 1961983. The reversal of 1961963 is 3691691.

It is a weak prime.

It is an emirp because it is prime and its reverse (3691691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1961963 - 26 = 1961899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1961903) 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, 980981 + 980982.

It is an arithmetic number, because the mean of its divisors is an integer number (980982).

21961963 is an apocalyptic number.

1961963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1961963 is an equidigital number, since it uses as much as digits as its factorization.

1961963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 35.

The square root of 1961963 is about 1400.7008959803. The cubic root of 1961963 is about 125.1882603221.

The spelling of 1961963 in words is "one million, nine hundred sixty-one thousand, nine hundred sixty-three".