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3995769 = 31331923
BaseRepresentation
bin1111001111100001111001
321112000011110
433033201321
52010331034
6221350533
745651321
oct17174171
97460143
103995769
11228a098
121408449
13a9b97b
14760281
1553dde9
hex3cf879

3995769 has 4 divisors (see below), whose sum is σ = 5327696. Its totient is φ = 2663844.

The previous prime is 3995753. The next prime is 3995777. The reversal of 3995769 is 9675993.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3995769 - 24 = 3995753 is a prime.

It is a super-2 number, since 2×39957692 = 31932339802722, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3995729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665959 + ... + 665964.

It is an arithmetic number, because the mean of its divisors is an integer number (1331924).

Almost surely, 23995769 is an apocalyptic number.

It is an amenable number.

3995769 is a deficient number, since it is larger than the sum of its proper divisors (1331927).

3995769 is a wasteful number, since it uses less digits than its factorization.

3995769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331926.

The product of its digits is 459270, while the sum is 48.

The square root of 3995769 is about 1998.9419701432. The cubic root of 3995769 is about 158.6841163360.

The spelling of 3995769 in words is "three million, nine hundred ninety-five thousand, seven hundred sixty-nine".

Divisors: 1 3 1331923 3995769