93228991 has 8 divisors (see below), whose sum is σ = 98741120. Its totient is φ = 87777432.

The previous prime is 93228977. The next prime is 93229001. The reversal of 93228991 is 19982239.

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 93228991 - 2¹¹ = 93226943 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 (93225991) 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, 11955 + ... + 18148.

It is an arithmetic number, because the mean of its divisors is an integer number (12342640).

Almost surely, 2^93228991 is an apocalyptic number.

93228991 is a deficient number, since it is larger than the sum of its proper divisors (5512129).

93228991 is a wasteful number, since it uses less digits than its factorization.

93228991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30285.

The product of its digits is 69984, while the sum is 43.

The square root of 93228991 is about 9655.5160918513. The cubic root of 93228991 is about 453.4370411641.

The spelling of 93228991 in words is "ninety-three million, two hundred twenty-eight thousand, nine hundred ninety-one".