91948243 has 4 divisors (see below), whose sum is σ = 92033920. Its totient is φ = 91862568.

The previous prime is 91948231. The next prime is 91948249. The reversal of 91948243 is 34284919.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91948243 - 2⁹ = 91947731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 91948196 and 91948205.

It is not an unprimeable number, because it can be changed into a prime (91948249) 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, 41208 + ... + 43381.

It is an arithmetic number, because the mean of its divisors is an integer number (23008480).

Almost surely, 2^91948243 is an apocalyptic number.

91948243 is a deficient number, since it is larger than the sum of its proper divisors (85677).

91948243 is a wasteful number, since it uses less digits than its factorization.

91948243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85676.

The product of its digits is 62208, while the sum is 40.

The square root of 91948243 is about 9588.9646469262. The cubic root of 91948243 is about 451.3510720160.

The spelling of 91948243 in words is "ninety-one million, nine hundred forty-eight thousand, two hundred forty-three".