91243344 has 20 divisors (see below), whose sum is σ = 235712096. Its totient is φ = 30414432.

The previous prime is 91243343. The next prime is 91243351. The reversal of 91243344 is 44334219.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91243343) 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, 950404 + ... + 950499.

Almost surely, 2^91243344 is an apocalyptic number.

It is an amenable number.

91243344 is an abundant number, since it is smaller than the sum of its proper divisors (144468752).

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

91243344 is a wasteful number, since it uses less digits than its factorization.

91243344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900914 (or 1900908 counting only the distinct ones).

The product of its digits is 10368, while the sum is 30.

The square root of 91243344 is about 9552.1381899552. The cubic root of 91243344 is about 450.1947206680.

The spelling of 91243344 in words is "ninety-one million, two hundred forty-three thousand, three hundred forty-four".