91426448 has 10 divisors (see below), whose sum is σ = 177138774. Its totient is φ = 45713216.

The previous prime is 91426429. The next prime is 91426451. The reversal of 91426448 is 84462419.

It can be written as a sum of positive squares in only one way, i.e., 91164304 + 262144 = 9548^2 + 512^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2857061 + ... + 2857092.

Almost surely, 2^91426448 is an apocalyptic number.

It is an amenable number.

91426448 is a deficient number, since it is larger than the sum of its proper divisors (85712326).

91426448 is a wasteful number, since it uses less digits than its factorization.

91426448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714161 (or 5714155 counting only the distinct ones).

The product of its digits is 55296, while the sum is 38.

The square root of 91426448 is about 9561.7178372926. The cubic root of 91426448 is about 450.4956645362.

The spelling of 91426448 in words is "ninety-one million, four hundred twenty-six thousand, four hundred forty-eight".