41664747 has 4 divisors (see below), whose sum is σ = 55553000. Its totient is φ = 27776496.

The previous prime is 41664737. The next prime is 41664751. The reversal of 41664747 is 74746614.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 41664747 - 2¹² = 41660651 is a prime.

It is a super-2 number, since 2×41664747² = 3471902285148018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41664737) 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, 6944122 + ... + 6944127.

It is an arithmetic number, because the mean of its divisors is an integer number (13888250).

Almost surely, 2^41664747 is an apocalyptic number.

41664747 is a deficient number, since it is larger than the sum of its proper divisors (13888253).

41664747 is a wasteful number, since it uses less digits than its factorization.

41664747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13888252.

The product of its digits is 112896, while the sum is 39.

The square root of 41664747 is about 6454.8235452257. The cubic root of 41664747 is about 346.6753130034.

The spelling of 41664747 in words is "forty-one million, six hundred sixty-four thousand, seven hundred forty-seven".