91434347 has 8 divisors (see below), whose sum is σ = 96980400. Its totient is φ = 85906944.

The previous prime is 91434341. The next prime is 91434349. The reversal of 91434347 is 74343419.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91434347 - 2¹⁰ = 91433323 is a prime.

It is a super-3 number, since 3×91434347³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91434341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6179 + ... + 14867.

It is an arithmetic number, because the mean of its divisors is an integer number (12122550).

Almost surely, 2^91434347 is an apocalyptic number.

91434347 is a deficient number, since it is larger than the sum of its proper divisors (5546053).

91434347 is a wasteful number, since it uses less digits than its factorization.

91434347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9325.

The product of its digits is 36288, while the sum is 35.

The square root of 91434347 is about 9562.1308817648. The cubic root of 91434347 is about 450.5086380351.

The spelling of 91434347 in words is "ninety-one million, four hundred thirty-four thousand, three hundred forty-seven".