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85894997 = 131655687
BaseRepresentation
bin1010001111010…
…10011101010101
312222121220210012
411013222131111
5133442114442
612305010005
72062044506
oct507523525
9188556705
1085894997
1144538201
1224923905
1314a45656
14b59cbad
15781a582
hex51ea755

85894997 has 4 divisors (see below), whose sum is σ = 86550816. Its totient is φ = 85239180.

The previous prime is 85894981. The next prime is 85895003. The reversal of 85894997 is 79949858.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79949858 = 239974929.

It is a cyclic number.

It is not a de Polignac number, because 85894997 - 24 = 85894981 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 (85894097) 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, 327713 + ... + 327974.

It is an arithmetic number, because the mean of its divisors is an integer number (21637704).

Almost surely, 285894997 is an apocalyptic number.

It is an amenable number.

85894997 is a deficient number, since it is larger than the sum of its proper divisors (655819).

85894997 is a wasteful number, since it uses less digits than its factorization.

85894997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655818.

The product of its digits is 6531840, while the sum is 59.

The square root of 85894997 is about 9267.9553840100. The cubic root of 85894997 is about 441.2207782118.

The spelling of 85894997 in words is "eighty-five million, eight hundred ninety-four thousand, nine hundred ninety-seven".

Divisors: 1 131 655687 85894997