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2887985 = 5836959
BaseRepresentation
bin1011000001000100110001
312102201120102
423001010301
51214403420
6141522145
733355532
oct13010461
95381512
102887985
1116a2871
12b73355
137a1689
14552689
153c0a75
hex2c1131

2887985 has 8 divisors (see below), whose sum is σ = 3507840. Its totient is φ = 2282224.

The previous prime is 2887979. The next prime is 2887987. The reversal of 2887985 is 5897882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2887985 - 26 = 2887921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2887987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3065 + ... + 3894.

It is an arithmetic number, because the mean of its divisors is an integer number (438480).

22887985 is an apocalyptic number.

It is an amenable number.

2887985 is a deficient number, since it is larger than the sum of its proper divisors (619855).

2887985 is an equidigital number, since it uses as much as digits as its factorization.

2887985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7047.

The product of its digits is 322560, while the sum is 47.

The square root of 2887985 is about 1699.4072496020. The cubic root of 2887985 is about 142.4071006275.

The spelling of 2887985 in words is "two million, eight hundred eighty-seven thousand, nine hundred eighty-five".

Divisors: 1 5 83 415 6959 34795 577597 2887985