93221257 has 8 divisors (see below), whose sum is σ = 95356800. Its totient is φ = 91092144.

The previous prime is 93221243. The next prime is 93221263. The reversal of 93221257 is 75212239.

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 93221257 - 2⁷ = 93221129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93221207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39219 + ... + 41527.

It is an arithmetic number, because the mean of its divisors is an integer number (11919600).

Almost surely, 2^93221257 is an apocalyptic number.

It is an amenable number.

93221257 is a deficient number, since it is larger than the sum of its proper divisors (2135543).

93221257 is a wasteful number, since it uses less digits than its factorization.

93221257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215.

The product of its digits is 7560, while the sum is 31.

The square root of 93221257 is about 9655.1155870865. The cubic root of 93221257 is about 453.4245022210.

The spelling of 93221257 in words is "ninety-three million, two hundred twenty-one thousand, two hundred fifty-seven".