91234445 has 8 divisors (see below), whose sum is σ = 114241536. Its totient is φ = 69814096.

The previous prime is 91234441. The next prime is 91234453. The reversal of 91234445 is 54443219.

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 91234445 - 2² = 91234441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91234441) 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, 396557 + ... + 396786.

It is an arithmetic number, because the mean of its divisors is an integer number (14280192).

Almost surely, 2^91234445 is an apocalyptic number.

It is an amenable number.

91234445 is a deficient number, since it is larger than the sum of its proper divisors (23007091).

91234445 is a wasteful number, since it uses less digits than its factorization.

91234445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793371.

The product of its digits is 17280, while the sum is 32.

The square root of 91234445 is about 9551.6723666591. The cubic root of 91234445 is about 450.1800843015.

The spelling of 91234445 in words is "ninety-one million, two hundred thirty-four thousand, four hundred forty-five".