10643637 has 4 divisors (see below), whose sum is σ = 14191520. Its totient is φ = 7095756.

The previous prime is 10643627. The next prime is 10643639. The reversal of 10643637 is 73634601.

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 not a de Polignac number, because 10643637 - 2⁴ = 10643621 is a prime.

It is a super-2 number, since 2×10643637² = 226574017175538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10643639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1773937 + ... + 1773942.

It is an arithmetic number, because the mean of its divisors is an integer number (3547880).

Almost surely, 2^10643637 is an apocalyptic number.

It is an amenable number.

10643637 is a deficient number, since it is larger than the sum of its proper divisors (3547883).

10643637 is an equidigital number, since it uses as much as digits as its factorization.

10643637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547882.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 10643637 is about 3262.4587353712. The cubic root of 10643637 is about 219.9699476856.

The spelling of 10643637 in words is "ten million, six hundred forty-three thousand, six hundred thirty-seven".