91005282 has 20 divisors (see below), whose sum is σ = 203919606. Its totient is φ = 30335040.

The previous prime is 91005263. The next prime is 91005289. The reversal of 91005282 is 28250019.

It can be written as a sum of positive squares in only one way, i.e., 59768361 + 31236921 = 7731^2 + 5589^2 .

It is a super-2 number, since 2×91005282² = 16563922703799048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (91005289) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 280719 + ... + 281042.

Almost surely, 2^91005282 is an apocalyptic number.

91005282 is an abundant number, since it is smaller than the sum of its proper divisors (112914324).

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

91005282 is a wasteful number, since it uses less digits than its factorization.

91005282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561775 (or 561766 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 91005282 is about 9539.6688621776. The cubic root of 91005282 is about 449.8028469697.

The spelling of 91005282 in words is "ninety-one million, five thousand, two hundred eighty-two".