91273063 has 8 divisors (see below), whose sum is σ = 107909280. Its totient is φ = 75536160.

The previous prime is 91273057. The next prime is 91273067. The reversal of 91273063 is 36037219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91273063 - 2¹³ = 91264871 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 (91273067) 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, 224608 + ... + 225013.

It is an arithmetic number, because the mean of its divisors is an integer number (13488660).

Almost surely, 2^91273063 is an apocalyptic number.

91273063 is a deficient number, since it is larger than the sum of its proper divisors (16636217).

91273063 is a wasteful number, since it uses less digits than its factorization.

91273063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449657.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 91273063 is about 9553.6936835969. The cubic root of 91273063 is about 450.2435932176.

The spelling of 91273063 in words is "ninety-one million, two hundred seventy-three thousand, sixty-three".