91006048 has 48 divisors (see below), whose sum is σ = 215550720. Its totient is φ = 36948096.

The previous prime is 91006037. The next prime is 91006057. The reversal of 91006048 is 84060019.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 6436 + ... + 14947.

It is an arithmetic number, because the mean of its divisors is an integer number (4490640).

Almost surely, 2^91006048 is an apocalyptic number.

It is an amenable number.

91006048 is an abundant number, since it is smaller than the sum of its proper divisors (124544672).

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

91006048 is a wasteful number, since it uses less digits than its factorization.

91006048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21419 (or 21411 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 91006048 is about 9539.7090102372. The cubic root of 91006048 is about 449.8041089771.

The spelling of 91006048 in words is "ninety-one million, six thousand, forty-eight".