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1968401 is a prime number
BaseRepresentation
bin111100000100100010001
310201000010202
413200210101
51000442101
6110104545
722505531
oct7404421
93630122
101968401
111124986
127ab155
1353bc46
143934c1
1528d36b
hex1e0911

1968401 has 2 divisors, whose sum is σ = 1968402. Its totient is φ = 1968400.

The previous prime is 1968391. The next prime is 1968403. The reversal of 1968401 is 1048691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1918225 + 50176 = 1385^2 + 224^2 .

It is a cyclic number.

It is not a de Polignac number, because 1968401 - 210 = 1967377 is a prime.

Together with 1968403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1968403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984200 + 984201.

It is an arithmetic number, because the mean of its divisors is an integer number (984201).

21968401 is an apocalyptic number.

It is an amenable number.

1968401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1968401 is an equidigital number, since it uses as much as digits as its factorization.

1968401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1968401 is about 1402.9971489636. The cubic root of 1968401 is about 125.3250420487.

The spelling of 1968401 in words is "one million, nine hundred sixty-eight thousand, four hundred one".