91968205 has 16 divisors (see below), whose sum is σ = 127290240. Its totient is φ = 62482752.

The previous prime is 91968203. The next prime is 91968223. The reversal of 91968205 is 50286919.

It is a cyclic number.

It is not a de Polignac number, because 91968205 - 2¹ = 91968203 is a prime.

It is a super-3 number, since 3×91968205³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91968203) 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, 8239 + ... + 15868.

It is an arithmetic number, because the mean of its divisors is an integer number (7955640).

Almost surely, 2^91968205 is an apocalyptic number.

It is an amenable number.

91968205 is a deficient number, since it is larger than the sum of its proper divisors (35322035).

91968205 is a wasteful number, since it uses less digits than its factorization.

91968205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24228.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 91968205 is about 9590.0054744510. The cubic root of 91968205 is about 451.3837324848.

The spelling of 91968205 in words is "ninety-one million, nine hundred sixty-eight thousand, two hundred five".