91965701 has 4 divisors (see below), whose sum is σ = 92115372. Its totient is φ = 91816032.

The previous prime is 91965673. The next prime is 91965703. The reversal of 91965701 is 10756919.

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 7344100 + 84621601 = 2710^2 + 9199^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91965701 is a prime.

It is a super-3 number, since 3×91965701³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91965703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73910 + ... + 75143.

It is an arithmetic number, because the mean of its divisors is an integer number (23028843).

Almost surely, 2^91965701 is an apocalyptic number.

It is an amenable number.

91965701 is a deficient number, since it is larger than the sum of its proper divisors (149671).

91965701 is a wasteful number, since it uses less digits than its factorization.

91965701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149670.

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

The square root of 91965701 is about 9589.8749209779. The cubic root of 91965701 is about 451.3796358693.

The spelling of 91965701 in words is "ninety-one million, nine hundred sixty-five thousand, seven hundred one".