10215993 has 8 divisors (see below), whose sum is σ = 13654656. Its totient is φ = 6794000.

The previous prime is 10215971. The next prime is 10216013. The reversal of 10215993 is 39951201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10215993 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10215993.

It is not an unprimeable number, because it can be changed into a prime (10215913) 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, 2658 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (1706832).

Almost surely, 2^10215993 is an apocalyptic number.

It is an amenable number.

10215993 is a deficient number, since it is larger than the sum of its proper divisors (3438663).

10215993 is an equidigital number, since it uses as much as digits as its factorization.

10215993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8335.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 10215993 is about 3196.2467051215. The cubic root of 10215993 is about 216.9835759547.

The spelling of 10215993 in words is "ten million, two hundred fifteen thousand, nine hundred ninety-three".