91384946 has 16 divisors (see below), whose sum is σ = 145622400. Its totient is φ = 42888528.

The previous prime is 91384907. The next prime is 91384973. The reversal of 91384946 is 64948319.

It is a junction number, because it is equal to n+sod(n) for n = 91384897 and 91384906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6890 + ... + 15173.

It is an arithmetic number, because the mean of its divisors is an integer number (9101400).

Almost surely, 2^91384946 is an apocalyptic number.

91384946 is a deficient number, since it is larger than the sum of its proper divisors (54237454).

91384946 is a wasteful number, since it uses less digits than its factorization.

91384946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22193.

The product of its digits is 186624, while the sum is 44.

The square root of 91384946 is about 9559.5473742223. The cubic root of 91384946 is about 450.4274884186.

The spelling of 91384946 in words is "ninety-one million, three hundred eighty-four thousand, nine hundred forty-six".