91489434 has 16 divisors (see below), whose sum is σ = 183525888. Its totient is φ = 30405312.

The previous prime is 91489421. The next prime is 91489459. The reversal of 91489434 is 43498419.

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, 20602 + ... + 24645.

It is an arithmetic number, because the mean of its divisors is an integer number (11470368).

Almost surely, 2^91489434 is an apocalyptic number.

91489434 is an abundant number, since it is smaller than the sum of its proper divisors (92036454).

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

91489434 is a wasteful number, since it uses less digits than its factorization.

91489434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45589.

The product of its digits is 124416, while the sum is 42.

The square root of 91489434 is about 9565.0109252421. The cubic root of 91489434 is about 450.5990934198.

The spelling of 91489434 in words is "ninety-one million, four hundred eighty-nine thousand, four hundred thirty-four".