91114471 has 6 divisors (see below), whose sum is σ = 105990360. Its totient is φ = 78098076.

The previous prime is 91114447. The next prime is 91114493. The reversal of 91114471 is 17441119.

It is not a de Polignac number, because 91114471 - 2¹⁹ = 90590183 is a prime.

It is a super-3 number, since 3×91114471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91114411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 929691 + ... + 929788.

It is an arithmetic number, because the mean of its divisors is an integer number (17665060).

Almost surely, 2^91114471 is an apocalyptic number.

91114471 is a deficient number, since it is larger than the sum of its proper divisors (14875889).

91114471 is a wasteful number, since it uses less digits than its factorization.

91114471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859493 (or 1859486 counting only the distinct ones).

The product of its digits is 1008, while the sum is 28.

The square root of 91114471 is about 9545.3900391760. The cubic root of 91114471 is about 449.9826676452.

The spelling of 91114471 in words is "ninety-one million, one hundred fourteen thousand, four hundred seventy-one".