91053793 has 4 divisors (see below), whose sum is σ = 91770880. Its totient is φ = 90336708.

The previous prime is 91053791. The next prime is 91053817. The reversal of 91053793 is 39735019.

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.

It is a cyclic number.

It is not a de Polignac number, because 91053793 - 2¹ = 91053791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91053791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358353 + ... + 358606.

It is an arithmetic number, because the mean of its divisors is an integer number (22942720).

Almost surely, 2^91053793 is an apocalyptic number.

It is an amenable number.

91053793 is a deficient number, since it is larger than the sum of its proper divisors (717087).

91053793 is a wasteful number, since it uses less digits than its factorization.

91053793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717086.

The product of its (nonzero) digits is 25515, while the sum is 37.

The square root of 91053793 is about 9542.2111169267. The cubic root of 91053793 is about 449.8827562871.

The spelling of 91053793 in words is "ninety-one million, fifty-three thousand, seven hundred ninety-three".