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BaseRepresentation
bin100000011000…
…001000000001
3120222012120002
4200120020001
54133044200
6501525345
7132066452
oct40301001
916865502
108487425
114877801
122a13855
1319b225b
15b29bd5
hex818201

8487425 has 12 divisors (see below), whose sum is σ = 10573356. Its totient is φ = 6758400.

The previous prime is 8487421. The next prime is 8487527. The reversal of 8487425 is 5247848.

It can be written as a sum of positive squares in 6 ways, for example, as 1560001 + 6927424 = 1249^2 + 2632^2 .

It is not a de Polignac number, because 8487425 - 22 = 8487421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8487421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5765 + ... + 7085.

It is an arithmetic number, because the mean of its divisors is an integer number (881113).

It is the magic constant of a 257 × 257 magic square.

Almost surely, 28487425 is an apocalyptic number.

It is an amenable number.

8487425 is a deficient number, since it is larger than the sum of its proper divisors (2085931).

8487425 is a wasteful number, since it uses less digits than its factorization.

8487425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588 (or 1583 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The square root of 8487425 is about 2913.3185545010. The cubic root of 8487425 is about 203.9820646157.

The spelling of 8487425 in words is "eight million, four hundred eighty-seven thousand, four hundred twenty-five".