41989397 has 4 divisors (see below), whose sum is σ = 42003276. Its totient is φ = 41975520.

The previous prime is 41989393. The next prime is 41989403. The reversal of 41989397 is 79398914.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 21613201 + 20376196 = 4649^2 + 4514^2 .

It is a cyclic number.

It is not a de Polignac number, because 41989397 - 2² = 41989393 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41989391) 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, 254 + ... + 9167.

It is an arithmetic number, because the mean of its divisors is an integer number (10500819).

Almost surely, 2^41989397 is an apocalyptic number.

It is an amenable number.

41989397 is a deficient number, since it is larger than the sum of its proper divisors (13879).

41989397 is an equidigital number, since it uses as much as digits as its factorization.

41989397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13878.

The product of its digits is 489888, while the sum is 50.

The square root of 41989397 is about 6479.9226075625. The cubic root of 41989397 is about 347.5734109867.

The spelling of 41989397 in words is "forty-one million, nine hundred eighty-nine thousand, three hundred ninety-seven".