91376371 has 2 divisors, whose sum is σ = 91376372. Its totient is φ = 91376370.

The previous prime is 91376359. The next prime is 91376387. The reversal of 91376371 is 17367319.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91376371 is a prime.

It is a super-3 number, since 3×91376371³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91376371.

It is not a weakly prime, because it can be changed into another prime (91376321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45688185 + 45688186.

It is an arithmetic number, because the mean of its divisors is an integer number (45688186).

Almost surely, 2^91376371 is an apocalyptic number.

91376371 is a deficient number, since it is larger than the sum of its proper divisors (1).

91376371 is an equidigital number, since it uses as much as digits as its factorization.

91376371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23814, while the sum is 37.

The square root of 91376371 is about 9559.0988592022. The cubic root of 91376371 is about 450.4133995316.

It can be divided in two parts, 913 and 76371, that added together give a square (77284 = 278²).

The spelling of 91376371 in words is "ninety-one million, three hundred seventy-six thousand, three hundred seventy-one".