91270036 has 24 divisors (see below), whose sum is σ = 187647264. Its totient is φ = 38294880.

The previous prime is 91270027. The next prime is 91270063. The reversal of 91270036 is 63007219.

It is a junction number, because it is equal to n+sod(n) for n = 91269986 and 91270013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79210 + ... + 80353.

It is an arithmetic number, because the mean of its divisors is an integer number (7818636).

Almost surely, 2^91270036 is an apocalyptic number.

It is an amenable number.

91270036 is an abundant number, since it is smaller than the sum of its proper divisors (96377228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91270036 is a wasteful number, since it uses less digits than its factorization.

91270036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159591 (or 159589 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 91270036 is about 9553.5352618808. The cubic root of 91270036 is about 450.2386158367.

The spelling of 91270036 in words is "ninety-one million, two hundred seventy thousand, thirty-six".