86523563 has 6 divisors (see below), whose sum is σ = 100649916. Its totient is φ = 74163012.

The previous prime is 86523509. The next prime is 86523589. The reversal of 86523563 is 36532568.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-86523563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86523163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 882845 + ... + 882942.

It is an arithmetic number, because the mean of its divisors is an integer number (16774986).

Almost surely, 2^86523563 is an apocalyptic number.

86523563 is a deficient number, since it is larger than the sum of its proper divisors (14126353).

86523563 is a wasteful number, since it uses less digits than its factorization.

86523563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765801 (or 1765794 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 86523563 is about 9301.8042873412. The cubic root of 86523563 is about 442.2944248154.

The spelling of 86523563 in words is "eighty-six million, five hundred twenty-three thousand, five hundred sixty-three".