91484047 has 2 divisors, whose sum is σ = 91484048. Its totient is φ = 91484046.

The previous prime is 91484023. The next prime is 91484051. The reversal of 91484047 is 74048419.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91484047 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 91483997 and 91484015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91484077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45742023 + 45742024.

It is an arithmetic number, because the mean of its divisors is an integer number (45742024).

Almost surely, 2^91484047 is an apocalyptic number.

91484047 is a deficient number, since it is larger than the sum of its proper divisors (1).

91484047 is an equidigital number, since it uses as much as digits as its factorization.

91484047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 91484047 is about 9564.7293218366. The cubic root of 91484047 is about 450.5902493203.

The spelling of 91484047 in words is "ninety-one million, four hundred eighty-four thousand, forty-seven".