91344858 has 16 divisors (see below), whose sum is σ = 199298016. Its totient is φ = 27680240.

The previous prime is 91344853. The next prime is 91344863. The reversal of 91344858 is 85844319.

It is an interprime number because it is at equal distance from previous prime (91344853) and next prime (91344863).

It is not an unprimeable number, because it can be changed into a prime (91344853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691941 + ... + 692072.

It is an arithmetic number, because the mean of its divisors is an integer number (12456126).

Almost surely, 2^91344858 is an apocalyptic number.

91344858 is an abundant number, since it is smaller than the sum of its proper divisors (107953158).

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

91344858 is a wasteful number, since it uses less digits than its factorization.

91344858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384029.

The product of its digits is 138240, while the sum is 42.

The square root of 91344858 is about 9557.4503922333. The cubic root of 91344858 is about 450.3616155044.

The spelling of 91344858 in words is "ninety-one million, three hundred forty-four thousand, eight hundred fifty-eight".