10643982 has 8 divisors (see below), whose sum is σ = 21287976. Its totient is φ = 3547992.

The previous prime is 10643981. The next prime is 10644001. The reversal of 10643982 is 28934601.

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

10643982 is an admirable number.

It is a super-2 number, since 2×10643982² = 226588705632648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10643981) 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, 886993 + ... + 887004.

It is an arithmetic number, because the mean of its divisors is an integer number (2660997).

Almost surely, 2^10643982 is an apocalyptic number.

10643982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10643982 is a wasteful number, since it uses less digits than its factorization.

10643982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774002.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 10643982 is about 3262.5116091747. The cubic root of 10643982 is about 219.9723243423.

The spelling of 10643982 in words is "ten million, six hundred forty-three thousand, nine hundred eighty-two".