91326969 has 24 divisors (see below), whose sum is σ = 137884032. Its totient is φ = 58191840.

The previous prime is 91326959. The next prime is 91326973. The reversal of 91326969 is 96962319.

It is a happy number.

It is not a de Polignac number, because 91326969 - 2⁴ = 91326953 is a prime.

It is a super-2 number, since 2×91326969² = 16681230533453922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91326929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15679 + ... + 20699.

It is an arithmetic number, because the mean of its divisors is an integer number (5745168).

Almost surely, 2^91326969 is an apocalyptic number.

It is an amenable number.

91326969 is a deficient number, since it is larger than the sum of its proper divisors (46557063).

91326969 is a wasteful number, since it uses less digits than its factorization.

91326969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117 (or 5114 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 91326969 is about 9556.5144796626. The cubic root of 91326969 is about 450.3322139409.

The spelling of 91326969 in words is "ninety-one million, three hundred twenty-six thousand, nine hundred sixty-nine".