10639894 has 8 divisors (see below), whose sum is σ = 16075080. Its totient is φ = 5281536.

The previous prime is 10639891. The next prime is 10639903. The reversal of 10639894 is 49893601.

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

It is a super-2 number, since 2×10639894² = 226414688662472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10639891) 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, 18859 + ... + 19414.

It is an arithmetic number, because the mean of its divisors is an integer number (2009385).

Almost surely, 2^10639894 is an apocalyptic number.

10639894 is a deficient number, since it is larger than the sum of its proper divisors (5435186).

10639894 is a wasteful number, since it uses less digits than its factorization.

10639894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38414.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 10639894 is about 3261.8850378271. The cubic root of 10639894 is about 219.9441593814.

It can be divided in two parts, 106 and 39894, that added together give a square (40000 = 200²).

The spelling of 10639894 in words is "ten million, six hundred thirty-nine thousand, eight hundred ninety-four".