10639993 has 8 divisors (see below), whose sum is σ = 13095488. Its totient is φ = 8418384.

The previous prime is 10639987. The next prime is 10640009. The reversal of 10639993 is 39993601.

10639993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10639993 - 2⁹ = 10639481 is a prime.

It is a super-2 number, since 2×10639993² = 226418902080098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10639903) 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, 58371 + ... + 58552.

It is an arithmetic number, because the mean of its divisors is an integer number (1636936).

Almost surely, 2^10639993 is an apocalyptic number.

10639993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

10639993 is a deficient number, since it is larger than the sum of its proper divisors (2455495).

10639993 is a wasteful number, since it uses less digits than its factorization.

10639993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116943.

The product of its (nonzero) digits is 39366, while the sum is 40.

The square root of 10639993 is about 3261.9002130660. The cubic root of 10639993 is about 219.9448415437.

The spelling of 10639993 in words is "ten million, six hundred thirty-nine thousand, nine hundred ninety-three".