91448049 has 96 divisors (see below), whose sum is σ = 170069760. Its totient is φ = 42577920.

The previous prime is 91448039. The next prime is 91448111. The reversal of 91448049 is 94084419.

It is not a de Polignac number, because 91448049 - 2⁵ = 91448017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91447998 and 91448016.

It is not an unprimeable number, because it can be changed into a prime (91448029) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1252677 + ... + 1252749.

It is an arithmetic number, because the mean of its divisors is an integer number (1771560).

Almost surely, 2^91448049 is an apocalyptic number.

It is an amenable number.

91448049 is a deficient number, since it is larger than the sum of its proper divisors (78621711).

91448049 is a wasteful number, since it uses less digits than its factorization.

91448049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 91448049 is about 9562.8473270256. The cubic root of 91448049 is about 450.5311407424.

The spelling of 91448049 in words is "ninety-one million, four hundred forty-eight thousand, forty-nine".