91969896 has 16 divisors (see below), whose sum is σ = 229924800. Its totient is φ = 30656624.

The previous prime is 91969877. The next prime is 91969897. The reversal of 91969896 is 69896919.

It is a super-3 number, since 3×91969896³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (91969897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1916016 + ... + 1916063.

It is an arithmetic number, because the mean of its divisors is an integer number (14370300).

Almost surely, 2^91969896 is an apocalyptic number.

It is an amenable number.

91969896 is an abundant number, since it is smaller than the sum of its proper divisors (137954904).

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

91969896 is a wasteful number, since it uses less digits than its factorization.

91969896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3832088 (or 3832084 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 57.

The square root of 91969896 is about 9590.0936387504. The cubic root of 91969896 is about 451.3864989670.

The spelling of 91969896 in words is "ninety-one million, nine hundred sixty-nine thousand, eight hundred ninety-six".