10423993 has 4 divisors (see below), whose sum is σ = 10438948. Its totient is φ = 10409040.

The previous prime is 10423981. The next prime is 10423999. The reversal of 10423993 is 39932401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9048064 + 1375929 = 3008^2 + 1173^2 .

It is a cyclic number.

It is not a de Polignac number, because 10423993 - 2⁵ = 10423961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10423999) 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, 6378 + ... + 7843.

It is an arithmetic number, because the mean of its divisors is an integer number (2609737).

Almost surely, 2^10423993 is an apocalyptic number.

It is an amenable number.

10423993 is a deficient number, since it is larger than the sum of its proper divisors (14955).

10423993 is an equidigital number, since it uses as much as digits as its factorization.

10423993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14954.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 10423993 is about 3228.6209130215. The cubic root of 10423993 is about 218.4463053185.

The spelling of 10423993 in words is "ten million, four hundred twenty-three thousand, nine hundred ninety-three".