91405352 has 32 divisors (see below), whose sum is σ = 181029600. Its totient is φ = 43147584.

The previous prime is 91405343. The next prime is 91405357. The reversal of 91405352 is 25350419.

It is not an unprimeable number, because it can be changed into a prime (91405357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51878 + ... + 53610.

It is an arithmetic number, because the mean of its divisors is an integer number (5657175).

Almost surely, 2^91405352 is an apocalyptic number.

It is an amenable number.

91405352 is a deficient number, since it is larger than the sum of its proper divisors (89624248).

91405352 is a wasteful number, since it uses less digits than its factorization.

91405352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105 (or 2101 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 91405352 is about 9560.6146245940. The cubic root of 91405352 is about 450.4610123183.

The spelling of 91405352 in words is "ninety-one million, four hundred five thousand, three hundred fifty-two".