91488097 has 8 divisors (see below), whose sum is σ = 98652960. Its totient is φ = 84558240.

The previous prime is 91488091. The next prime is 91488107. The reversal of 91488097 is 79088419.

It is a happy number.

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 91488097 - 2¹⁹ = 90963809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91488091) 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, 57943 + ... + 59500.

It is an arithmetic number, because the mean of its divisors is an integer number (12331620).

Almost surely, 2^91488097 is an apocalyptic number.

It is an amenable number.

91488097 is a deficient number, since it is larger than the sum of its proper divisors (7164863).

91488097 is a wasteful number, since it uses less digits than its factorization.

91488097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117503.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 91488097 is about 9564.9410348418. The cubic root of 91488097 is about 450.5968984344.

The spelling of 91488097 in words is "ninety-one million, four hundred eighty-eight thousand, ninety-seven".