91346487 has 8 divisors (see below), whose sum is σ = 121879680. Its totient is φ = 60855480.

The previous prime is 91346467. The next prime is 91346503. The reversal of 91346487 is 78464319.

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

It is not a de Polignac number, because 91346487 - 2¹¹ = 91344439 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91346407) 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, 5089 + ... + 14442.

It is an arithmetic number, because the mean of its divisors is an integer number (15234960).

Almost surely, 2^91346487 is an apocalyptic number.

91346487 is a deficient number, since it is larger than the sum of its proper divisors (30533193).

91346487 is a wasteful number, since it uses less digits than its factorization.

91346487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21093.

The product of its digits is 145152, while the sum is 42.

The square root of 91346487 is about 9557.5356133263. The cubic root of 91346487 is about 450.3642926655.

The spelling of 91346487 in words is "ninety-one million, three hundred forty-six thousand, four hundred eighty-seven".