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87469677 = 3213996947
BaseRepresentation
bin1010011011010…
…10111001101101
320002120220211200
411031222321231
5134343012202
612402440113
72111323431
oct515527155
9202526750
1087469677
1145413299
1225363039
1315177309
14b88c9c1
157a2be1c
hex536ae6d

87469677 has 12 divisors (see below), whose sum is σ = 126453600. Its totient is φ = 58263048.

The previous prime is 87469661. The next prime is 87469691. The reversal of 87469677 is 77696478.

It is not a de Polignac number, because 87469677 - 24 = 87469661 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87469637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9118 + ... + 16064.

It is an arithmetic number, because the mean of its divisors is an integer number (10537800).

Almost surely, 287469677 is an apocalyptic number.

It is an amenable number.

87469677 is a deficient number, since it is larger than the sum of its proper divisors (38983923).

87469677 is a wasteful number, since it uses less digits than its factorization.

87469677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8352 (or 8349 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 54.

The square root of 87469677 is about 9352.5224939585. The cubic root of 87469677 is about 443.9007113022.

The spelling of 87469677 in words is "eighty-seven million, four hundred sixty-nine thousand, six hundred seventy-seven".

Divisors: 1 3 9 1399 4197 6947 12591 20841 62523 9718853 29156559 87469677