91484986 has 4 divisors (see below), whose sum is σ = 137227482. Its totient is φ = 45742492.

The previous prime is 91484971. The next prime is 91485013. The reversal of 91484986 is 68948419.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68948419 = 113 ⋅610163.

It can be written as a sum of positive squares in only one way, i.e., 64496961 + 26988025 = 8031^2 + 5195^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22871245 + ... + 22871248.

Almost surely, 2^91484986 is an apocalyptic number.

91484986 is a deficient number, since it is larger than the sum of its proper divisors (45742496).

91484986 is a wasteful number, since it uses less digits than its factorization.

91484986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45742495.

The product of its digits is 497664, while the sum is 49.

The square root of 91484986 is about 9564.7784083062. The cubic root of 91484986 is about 450.5917909472.

The spelling of 91484986 in words is "ninety-one million, four hundred eighty-four thousand, nine hundred eighty-six".