91469419 has 2 divisors, whose sum is σ = 91469420. Its totient is φ = 91469418.

The previous prime is 91469377. The next prime is 91469447. The reversal of 91469419 is 91496419.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91469419 - 2¹¹ = 91467371 is a prime.

It is a super-2 number, since 2×91469419² = 16733309224395122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (91469479) by changing a digit.

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, 45734709 + 45734710.

It is an arithmetic number, because the mean of its divisors is an integer number (45734710).

Almost surely, 2^91469419 is an apocalyptic number.

91469419 is a deficient number, since it is larger than the sum of its proper divisors (1).

91469419 is an equidigital number, since it uses as much as digits as its factorization.

91469419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 43.

The square root of 91469419 is about 9563.9646067936. The cubic root of 91469419 is about 450.5662320710.

Subtracting 91469419 from its reverse (91496419), we obtain a cube (27000 = 30³).

The spelling of 91469419 in words is "ninety-one million, four hundred sixty-nine thousand, four hundred nineteen".