91340385 has 16 divisors (see below), whose sum is σ = 149544384. Its totient is φ = 47581632.

The previous prime is 91340369. The next prime is 91340387. The reversal of 91340385 is 58304319.

It is not a de Polignac number, because 91340385 - 2⁴ = 91340369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91340387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70162 + ... + 71451.

It is an arithmetic number, because the mean of its divisors is an integer number (9346524).

Almost surely, 2^91340385 is an apocalyptic number.

It is an amenable number.

91340385 is a deficient number, since it is larger than the sum of its proper divisors (58203999).

91340385 is a wasteful number, since it uses less digits than its factorization.

91340385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141664.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 91340385 is about 9557.2163834455. The cubic root of 91340385 is about 450.3542642408.

The spelling of 91340385 in words is "ninety-one million, three hundred forty thousand, three hundred eighty-five".