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775601 is a prime number
BaseRepresentation
bin10111101010110110001
31110101220222
42331112301
5144304401
624342425
76410141
oct2752661
91411828
10775601
1148a7a2
12314a15
13212048
14162921
15104c1b
hexbd5b1

775601 has 2 divisors, whose sum is σ = 775602. Its totient is φ = 775600.

The previous prime is 775573. The next prime is 775603. The reversal of 775601 is 106577.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 564001 + 211600 = 751^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 775601 - 210 = 774577 is a prime.

It is a super-2 number, since 2×7756012 = 1203113822402, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 775603, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (775603) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387800 + 387801.

It is an arithmetic number, because the mean of its divisors is an integer number (387801).

2775601 is an apocalyptic number.

It is an amenable number.

775601 is a deficient number, since it is larger than the sum of its proper divisors (1).

775601 is an equidigital number, since it uses as much as digits as its factorization.

775601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 775601 is about 880.6821219941. The cubic root of 775601 is about 91.8782652672.

The spelling of 775601 in words is "seven hundred seventy-five thousand, six hundred one".