10915993 has 4 divisors (see below), whose sum is σ = 11908368. Its totient is φ = 9923620.

The previous prime is 10915991. The next prime is 10915997. The reversal of 10915993 is 39951901.

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 10915993 - 2¹ = 10915991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10915991) 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, 496171 + ... + 496192.

It is an arithmetic number, because the mean of its divisors is an integer number (2977092).

Almost surely, 2^10915993 is an apocalyptic number.

It is an amenable number.

10915993 is a deficient number, since it is larger than the sum of its proper divisors (992375).

10915993 is an equidigital number, since it uses as much as digits as its factorization.

10915993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992374.

The product of its (nonzero) digits is 10935, while the sum is 37.

The square root of 10915993 is about 3303.9359860627. The cubic root of 10915993 is about 221.8304104802.

The spelling of 10915993 in words is "ten million, nine hundred fifteen thousand, nine hundred ninety-three".