41386921 has 4 divisors (see below), whose sum is σ = 43565200. Its totient is φ = 39208644.

The previous prime is 41386909. The next prime is 41386937. The reversal of 41386921 is 12968314.

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.

It is a cyclic number.

It is not a de Polignac number, because 41386921 - 2⁹ = 41386409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41386901) 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, 1089111 + ... + 1089148.

It is an arithmetic number, because the mean of its divisors is an integer number (10891300).

Almost surely, 2^41386921 is an apocalyptic number.

It is an amenable number.

41386921 is a deficient number, since it is larger than the sum of its proper divisors (2178279).

41386921 is a wasteful number, since it uses less digits than its factorization.

41386921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178278.

The product of its digits is 10368, while the sum is 34.

The square root of 41386921 is about 6433.2667440423. The cubic root of 41386921 is about 345.9030350759.

The spelling of 41386921 in words is "forty-one million, three hundred eighty-six thousand, nine hundred twenty-one".