91450984 has 8 divisors (see below), whose sum is σ = 171470610. Its totient is φ = 45725488.

The previous prime is 91450979. The next prime is 91450993. The reversal of 91450984 is 48905419.

It can be written as a sum of positive squares in only one way, i.e., 70930084 + 20520900 = 8422^2 + 4530^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5715679 + ... + 5715694.

Almost surely, 2^91450984 is an apocalyptic number.

It is an amenable number.

91450984 is a deficient number, since it is larger than the sum of its proper divisors (80019626).

91450984 is a wasteful number, since it uses less digits than its factorization.

91450984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11431379 (or 11431375 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 91450984 is about 9563.0007842727. Note that the first 3 decimals coincide. The cubic root of 91450984 is about 450.5359605819.

The spelling of 91450984 in words is "ninety-one million, four hundred fifty thousand, nine hundred eighty-four".