91246969 has 4 divisors (see below), whose sum is σ = 99542160. Its totient is φ = 82951780.

The previous prime is 91246951. The next prime is 91247011. The reversal of 91246969 is 96964219.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96964219 = 11 ⋅8814929.

It is a cyclic number.

It is not a de Polignac number, because 91246969 - 2⁵ = 91246937 is a prime.

It is a super-2 number, since 2×91246969² = 16652018703373922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91246669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4147579 + ... + 4147600.

It is an arithmetic number, because the mean of its divisors is an integer number (24885540).

Almost surely, 2^91246969 is an apocalyptic number.

It is an amenable number.

91246969 is a deficient number, since it is larger than the sum of its proper divisors (8295191).

91246969 is a wasteful number, since it uses less digits than its factorization.

91246969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8295190.

The product of its digits is 209952, while the sum is 46.

The square root of 91246969 is about 9552.3279361630. The cubic root of 91246969 is about 450.2006825066.

The spelling of 91246969 in words is "ninety-one million, two hundred forty-six thousand, nine hundred sixty-nine".