91863027 has 6 divisors (see below), whose sum is σ = 132691052. Its totient is φ = 61242012.

The previous prime is 91862999. The next prime is 91863029. The reversal of 91863027 is 72036819.

91863027 is a `hidden beast` number, since 9 + 18 + 630 + 2 + 7 = 666.

It is not a de Polignac number, because 91863027 - 2¹⁰ = 91862003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91862982 and 91863000.

It is not an unprimeable number, because it can be changed into a prime (91863029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5103493 + ... + 5103510.

Almost surely, 2^91863027 is an apocalyptic number.

91863027 is a deficient number, since it is larger than the sum of its proper divisors (40828025).

91863027 is a wasteful number, since it uses less digits than its factorization.

91863027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10207009 (or 10207006 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 91863027 is about 9584.5201757834. The cubic root of 91863027 is about 451.2115941971.

The spelling of 91863027 in words is "ninety-one million, eight hundred sixty-three thousand, twenty-seven".