91312927 has 8 divisors (see below), whose sum is σ = 92725776. Its totient is φ = 89910912.

The previous prime is 91312919. The next prime is 91312939. The reversal of 91312927 is 72921319.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91312927 - 2³ = 91312919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91312892 and 91312901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91312997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15168 + ... + 20314.

It is an arithmetic number, because the mean of its divisors is an integer number (11590722).

Almost surely, 2^91312927 is an apocalyptic number.

91312927 is a deficient number, since it is larger than the sum of its proper divisors (1412849).

91312927 is a wasteful number, since it uses less digits than its factorization.

91312927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5417.

The product of its digits is 6804, while the sum is 34.

The square root of 91312927 is about 9555.7797693333. The cubic root of 91312927 is about 450.3091324454.

The spelling of 91312927 in words is "ninety-one million, three hundred twelve thousand, nine hundred twenty-seven".