41669639 has 8 divisors (see below), whose sum is σ = 45711120. Its totient is φ = 37670400.

The previous prime is 41669633. The next prime is 41669657. The reversal of 41669639 is 93696614.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41669639 is a prime.

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 41669639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41669633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8474 + ... + 12455.

It is an arithmetic number, because the mean of its divisors is an integer number (5713890).

Almost surely, 2^41669639 is an apocalyptic number.

41669639 is a deficient number, since it is larger than the sum of its proper divisors (4041481).

41669639 is a wasteful number, since it uses less digits than its factorization.

41669639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21121.

The product of its digits is 209952, while the sum is 44.

The square root of 41669639 is about 6455.2024755231. The cubic root of 41669639 is about 346.6888805826.

The spelling of 41669639 in words is "forty-one million, six hundred sixty-nine thousand, six hundred thirty-nine".