91488944 has 10 divisors (see below), whose sum is σ = 177259860. Its totient is φ = 45744464.

The previous prime is 91488923. The next prime is 91488949. The reversal of 91488944 is 44988419.

It is not an unprimeable number, because it can be changed into a prime (91488949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2859014 + ... + 2859045.

It is an arithmetic number, because the mean of its divisors is an integer number (17725986).

Almost surely, 2^91488944 is an apocalyptic number.

It is an amenable number.

91488944 is a deficient number, since it is larger than the sum of its proper divisors (85770916).

91488944 is a wasteful number, since it uses less digits than its factorization.

91488944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5718067 (or 5718061 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The square root of 91488944 is about 9564.9853110185. The cubic root of 91488944 is about 450.5982889774.

The spelling of 91488944 in words is "ninety-one million, four hundred eighty-eight thousand, nine hundred forty-four".