91002234 has 16 divisors (see below), whose sum is σ = 182136672. Its totient is φ = 30312048.

The previous prime is 91002227. The next prime is 91002239. The reversal of 91002234 is 43220019.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 91002234.

It is not an unprimeable number, because it can be changed into a prime (91002239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4977 + ... + 14379.

It is an arithmetic number, because the mean of its divisors is an integer number (11383542).

Almost surely, 2^91002234 is an apocalyptic number.

91002234 is an abundant number, since it is smaller than the sum of its proper divisors (91134438).

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

91002234 is a wasteful number, since it uses less digits than its factorization.

91002234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11021.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 91002234 is about 9539.5091068671. The cubic root of 91002234 is about 449.7978252305.

The spelling of 91002234 in words is "ninety-one million, two thousand, two hundred thirty-four".