35643623 has 4 divisors (see below), whose sum is σ = 35655600. Its totient is φ = 35631648.

The previous prime is 35643599. The next prime is 35643649. The reversal of 35643623 is 32634653.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 35643623 - 2⁸ = 35643367 is a prime.

It is a super-2 number, since 2×35643623² = 2540935721132258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 35643623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35643323) 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, 2303 + ... + 8751.

It is an arithmetic number, because the mean of its divisors is an integer number (8913900).

Almost surely, 2^35643623 is an apocalyptic number.

35643623 is a deficient number, since it is larger than the sum of its proper divisors (11977).

35643623 is an equidigital number, since it uses as much as digits as its factorization.

35643623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11976.

The product of its digits is 38880, while the sum is 32.

The square root of 35643623 is about 5970.2280525956. The cubic root of 35643623 is about 329.0995439770.

The spelling of 35643623 in words is "thirty-five million, six hundred forty-three thousand, six hundred twenty-three".