41091979 has 4 divisors (see below), whose sum is σ = 41765680. Its totient is φ = 40418280.

The previous prime is 41091977. The next prime is 41091997. The reversal of 41091979 is 97919014.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 41091979 - 2¹ = 41091977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41091977) 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, 336759 + ... + 336880.

It is an arithmetic number, because the mean of its divisors is an integer number (10441420).

Almost surely, 2^41091979 is an apocalyptic number.

41091979 is a deficient number, since it is larger than the sum of its proper divisors (673701).

41091979 is an equidigital number, since it uses as much as digits as its factorization.

41091979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673700.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 41091979 is about 6410.3025669620. The cubic root of 41091979 is about 345.0793880178.

The spelling of 41091979 in words is "forty-one million, ninety-one thousand, nine hundred seventy-nine".