41643397 has 4 divisors (see below), whose sum is σ = 41656320. Its totient is φ = 41630476.

The previous prime is 41643379. The next prime is 41643401. The reversal of 41643397 is 79334614.

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, 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 41643397 - 2¹⁵ = 41610629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41643997) 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, 2754 + ... + 9532.

It is an arithmetic number, because the mean of its divisors is an integer number (10414080).

Almost surely, 2^41643397 is an apocalyptic number.

It is an amenable number.

41643397 is a deficient number, since it is larger than the sum of its proper divisors (12923).

41643397 is an equidigital number, since it uses as much as digits as its factorization.

41643397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12922.

The product of its digits is 54432, while the sum is 37.

The square root of 41643397 is about 6453.1695313233. The cubic root of 41643397 is about 346.6160880146.

The spelling of 41643397 in words is "forty-one million, six hundred forty-three thousand, three hundred ninety-seven".