91375349 has 4 divisors (see below), whose sum is σ = 98404236. Its totient is φ = 84346464.

The previous prime is 91375331. The next prime is 91375363. The reversal of 91375349 is 94357319.

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 10195249 + 81180100 = 3193^2 + 9010^2 .

It is a cyclic number.

It is not a de Polignac number, because 91375349 - 2⁸ = 91375093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91375309) 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, 3514424 + ... + 3514449.

It is an arithmetic number, because the mean of its divisors is an integer number (24601059).

Almost surely, 2^91375349 is an apocalyptic number.

It is an amenable number.

91375349 is a deficient number, since it is larger than the sum of its proper divisors (7028887).

91375349 is a wasteful number, since it uses less digits than its factorization.

91375349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028886.

The product of its digits is 102060, while the sum is 41.

The square root of 91375349 is about 9559.0454021309. The cubic root of 91375349 is about 450.4117203075.

The spelling of 91375349 in words is "ninety-one million, three hundred seventy-five thousand, three hundred forty-nine".