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888661 is a prime number
BaseRepresentation
bin11011000111101010101
31200011000101
43120331111
5211414121
631014101
710360564
oct3307525
91604011
10888661
11557734
1236a331
13251647
14191bdb
15128491
hexd8f55

888661 has 2 divisors, whose sum is σ = 888662. Its totient is φ = 888660.

The previous prime is 888659. The next prime is 888683. The reversal of 888661 is 166888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 844561 + 44100 = 919^2 + 210^2 .

It is a cyclic number.

It is not a de Polignac number, because 888661 - 21 = 888659 is a prime.

Together with 888659, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 888661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (888631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444330 + 444331.

It is an arithmetic number, because the mean of its divisors is an integer number (444331).

2888661 is an apocalyptic number.

It is an amenable number.

888661 is a deficient number, since it is larger than the sum of its proper divisors (1).

888661 is an equidigital number, since it uses as much as digits as its factorization.

888661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 37.

The square root of 888661 is about 942.6881775009. The cubic root of 888661 is about 96.1417538352.

The spelling of 888661 in words is "eight hundred eighty-eight thousand, six hundred sixty-one".