91427876 has 6 divisors (see below), whose sum is σ = 159998790. Its totient is φ = 45713936.

The previous prime is 91427857. The next prime is 91427899. The reversal of 91427876 is 67872419.

It can be written as a sum of positive squares in only one way, i.e., 70997476 + 20430400 = 8426^2 + 4520^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11428481 + ... + 11428488.

It is an arithmetic number, because the mean of its divisors is an integer number (26666465).

Almost surely, 2^91427876 is an apocalyptic number.

It is an amenable number.

91427876 is a deficient number, since it is larger than the sum of its proper divisors (68570914).

91427876 is a wasteful number, since it uses less digits than its factorization.

91427876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22856973 (or 22856971 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 91427876 is about 9561.7925097756. The cubic root of 91427876 is about 450.4980099715.

The spelling of 91427876 in words is "ninety-one million, four hundred twenty-seven thousand, eight hundred seventy-six".