91469479 has 2 divisors, whose sum is σ = 91469480. Its totient is φ = 91469478.

The previous prime is 91469453. The next prime is 91469489. The reversal of 91469479 is 97496419.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91469479 - 2⁵ = 91469447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91469419) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45734739 + 45734740.

It is an arithmetic number, because the mean of its divisors is an integer number (45734740).

Almost surely, 2^91469479 is an apocalyptic number.

91469479 is a deficient number, since it is larger than the sum of its proper divisors (1).

91469479 is an equidigital number, since it uses as much as digits as its factorization.

91469479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 49.

The square root of 91469479 is about 9563.9677435675. The cubic root of 91469479 is about 450.5663305883.

The spelling of 91469479 in words is "ninety-one million, four hundred sixty-nine thousand, four hundred seventy-nine".