91446073 has 4 divisors (see below), whose sum is σ = 91769488. Its totient is φ = 91122660.

The previous prime is 91446037. The next prime is 91446101. The reversal of 91446073 is 37064419.

It is a happy number.

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 91446073 - 2⁹ = 91445561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91446013) 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, 161283 + ... + 161848.

It is an arithmetic number, because the mean of its divisors is an integer number (22942372).

Almost surely, 2^91446073 is an apocalyptic number.

It is an amenable number.

91446073 is a deficient number, since it is larger than the sum of its proper divisors (323415).

91446073 is a wasteful number, since it uses less digits than its factorization.

91446073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323414.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 91446073 is about 9562.7440099586. The cubic root of 91446073 is about 450.5278957089.

The spelling of 91446073 in words is "ninety-one million, four hundred forty-six thousand, seventy-three".