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4372987 = 11338699
BaseRepresentation
bin10000101011100111111011
322020011121111
4100223213323
52104413422
6233421151
752112143
oct20534773
98204544
104372987
112517543
12156a7b7
13ba1588
1481b923
155b5a77
hex42b9fb

4372987 has 4 divisors (see below), whose sum is σ = 4411800. Its totient is φ = 4334176.

The previous prime is 4372981. The next prime is 4373003. The reversal of 4372987 is 7892734.

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

It is a cyclic number.

It is not a de Polignac number, because 4372987 - 211 = 4370939 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

4372987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4372981) 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, 19237 + ... + 19462.

It is an arithmetic number, because the mean of its divisors is an integer number (1102950).

Almost surely, 24372987 is an apocalyptic number.

4372987 is a deficient number, since it is larger than the sum of its proper divisors (38813).

4372987 is a wasteful number, since it uses less digits than its factorization.

4372987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38812.

The product of its digits is 84672, while the sum is 40.

The square root of 4372987 is about 2091.1688119327. The cubic root of 4372987 is about 163.5282272556.

The spelling of 4372987 in words is "four million, three hundred seventy-two thousand, nine hundred eighty-seven".

Divisors: 1 113 38699 4372987