91006244 has 12 divisors (see below), whose sum is σ = 182012544. Its totient is φ = 39002664.

The previous prime is 91006243. The next prime is 91006249. The reversal of 91006244 is 44260019.

91006244 is an admirable number.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (91006243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1625084 + ... + 1625139.

It is an arithmetic number, because the mean of its divisors is an integer number (15167712).

Almost surely, 2^91006244 is an apocalyptic number.

It is an amenable number.

91006244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

91006244 is a wasteful number, since it uses less digits than its factorization.

91006244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250234 (or 3250232 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 91006244 is about 9539.7192830817. The cubic root of 91006244 is about 449.8044318917.

The spelling of 91006244 in words is "ninety-one million, six thousand, two hundred forty-four".