41688891 has 8 divisors (see below), whose sum is σ = 61761360. Its totient is φ = 27792576.

The previous prime is 41688877. The next prime is 41688901. The reversal of 41688891 is 19888614.

It is not a de Polignac number, because 41688891 - 2¹⁹ = 41164603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (41688821) 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, 771990 + ... + 772043.

It is an arithmetic number, because the mean of its divisors is an integer number (7720170).

Almost surely, 2^41688891 is an apocalyptic number.

41688891 is a deficient number, since it is larger than the sum of its proper divisors (20072469).

41688891 is a wasteful number, since it uses less digits than its factorization.

41688891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544042 (or 1544036 counting only the distinct ones).

The product of its digits is 110592, while the sum is 45.

The square root of 41688891 is about 6456.6935036441. The cubic root of 41688891 is about 346.7422641880.

The spelling of 41688891 in words is "forty-one million, six hundred eighty-eight thousand, eight hundred ninety-one".