91487441 has 8 divisors (see below), whose sum is σ = 93849504. Its totient is φ = 89131680.

The previous prime is 91487419. The next prime is 91487449. The reversal of 91487441 is 14478419.

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 91487441 - 2⁶ = 91487377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91487395 and 91487404.

It is not an unprimeable number, because it can be changed into a prime (91487449) 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 7 ways as a sum of consecutive naturals, for example, 45050 + ... + 47036.

It is an arithmetic number, because the mean of its divisors is an integer number (11731188).

Almost surely, 2^91487441 is an apocalyptic number.

It is an amenable number.

91487441 is a deficient number, since it is larger than the sum of its proper divisors (2362063).

91487441 is a wasteful number, since it uses less digits than its factorization.

91487441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151.

The product of its digits is 32256, while the sum is 38.

The square root of 91487441 is about 9564.9067428805. The cubic root of 91487441 is about 450.5958214554.

The spelling of 91487441 in words is "ninety-one million, four hundred eighty-seven thousand, four hundred forty-one".