91995353 has 4 divisors (see below), whose sum is σ = 92259300. Its totient is φ = 91731408.

The previous prime is 91995311. The next prime is 91995389. The reversal of 91995353 is 35359919.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51380224 + 40615129 = 7168^2 + 6373^2 .

It is a cyclic number.

It is not a de Polignac number, because 91995353 - 2⁶ = 91995289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91995053) 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, 131450 + ... + 132147.

It is an arithmetic number, because the mean of its divisors is an integer number (23064825).

Almost surely, 2^91995353 is an apocalyptic number.

It is an amenable number.

91995353 is a deficient number, since it is larger than the sum of its proper divisors (263947).

91995353 is a wasteful number, since it uses less digits than its factorization.

91995353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263946.

The product of its digits is 164025, while the sum is 44.

The square root of 91995353 is about 9591.4208019459. The cubic root of 91995353 is about 451.4281426154.

The spelling of 91995353 in words is "ninety-one million, nine hundred ninety-five thousand, three hundred fifty-three".