91424968 has 8 divisors (see below), whose sum is σ = 171421830. Its totient is φ = 45712480.

The previous prime is 91424951. The next prime is 91424969. The reversal of 91424968 is 86942419.

It can be written as a sum of positive squares in only one way, i.e., 47361924 + 44063044 = 6882^2 + 6638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (91424969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5714053 + ... + 5714068.

Almost surely, 2^91424968 is an apocalyptic number.

It is an amenable number.

91424968 is a deficient number, since it is larger than the sum of its proper divisors (79996862).

91424968 is a wasteful number, since it uses less digits than its factorization.

91424968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11428127 (or 11428123 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 91424968 is about 9561.6404450282. The cubic root of 91424968 is about 450.4932336671.

The spelling of 91424968 in words is "ninety-one million, four hundred twenty-four thousand, nine hundred sixty-eight".