91646793 has 12 divisors (see below), whose sum is σ = 151290048. Its totient is φ = 52369560.

The previous prime is 91646791. The next prime is 91646801. The reversal of 91646793 is 39764619.

It is not a de Polignac number, because 91646793 - 2¹ = 91646791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91646791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 727293 + ... + 727418.

It is an arithmetic number, because the mean of its divisors is an integer number (12607504).

Almost surely, 2^91646793 is an apocalyptic number.

It is an amenable number.

91646793 is a deficient number, since it is larger than the sum of its proper divisors (59643255).

91646793 is a wasteful number, since it uses less digits than its factorization.

91646793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454724 (or 1454721 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 91646793 is about 9573.2331529113. The cubic root of 91646793 is about 450.8572842895.

The spelling of 91646793 in words is "ninety-one million, six hundred forty-six thousand, seven hundred ninety-three".