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3999085 = 5799817
BaseRepresentation
bin1111010000010101101101
321112011201021
433100111231
52010432320
6221414141
745664066
oct17202555
97464637
103999085
112291632
12140a351
13aa032c
1476156d
1553edaa
hex3d056d

3999085 has 4 divisors (see below), whose sum is σ = 4798908. Its totient is φ = 3199264.

The previous prime is 3999067. The next prime is 3999109. The reversal of 3999085 is 5809993.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2111209 + 1887876 = 1453^2 + 1374^2 .

It is a cyclic number.

It is not a de Polignac number, because 3999085 - 25 = 3999053 is a prime.

It is a Duffinian number.

3999085 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399904 + ... + 399913.

It is an arithmetic number, because the mean of its divisors is an integer number (1199727).

Almost surely, 23999085 is an apocalyptic number.

It is an amenable number.

3999085 is a deficient number, since it is larger than the sum of its proper divisors (799823).

3999085 is an equidigital number, since it uses as much as digits as its factorization.

3999085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799822.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 3999085 is about 1999.7712369169. The cubic root of 3999085 is about 158.7280003408.

The spelling of 3999085 in words is "three million, nine hundred ninety-nine thousand, eighty-five".

Divisors: 1 5 799817 3999085