91675901 has 4 divisors (see below), whose sum is σ = 91717404. Its totient is φ = 91634400.

The previous prime is 91675889. The next prime is 91675967. The reversal of 91675901 is 10957619.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10957619 = 41 ⋅267259.

It can be written as a sum of positive squares in 2 ways, for example, as 50779876 + 40896025 = 7126^2 + 6395^2 .

It is a cyclic number.

It is not a de Polignac number, because 91675901 - 2¹⁸ = 91413757 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 (91675501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17240 + ... + 21921.

It is an arithmetic number, because the mean of its divisors is an integer number (22929351).

Almost surely, 2^91675901 is an apocalyptic number.

It is an amenable number.

91675901 is a deficient number, since it is larger than the sum of its proper divisors (41503).

91675901 is a wasteful number, since it uses less digits than its factorization.

91675901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41502.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 91675901 is about 9574.7533127491. The cubic root of 91675901 is about 450.9050115994.

The spelling of 91675901 in words is "ninety-one million, six hundred seventy-five thousand, nine hundred one".