20077441 has 4 divisors (see below), whose sum is σ = 20086612. Its totient is φ = 20068272.

The previous prime is 20077439. The next prime is 20077489. The reversal of 20077441 is 14477002.

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 7862416 + 12215025 = 2804^2 + 3495^2 .

It is a cyclic number.

It is not a de Polignac number, because 20077441 - 2¹ = 20077439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20077411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835 + ... + 6391.

It is an arithmetic number, because the mean of its divisors is an integer number (5021653).

Almost surely, 2^20077441 is an apocalyptic number.

It is an amenable number.

20077441 is a deficient number, since it is larger than the sum of its proper divisors (9171).

20077441 is an equidigital number, since it uses as much as digits as its factorization.

20077441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9170.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 20077441 is about 4480.7857569850. The cubic root of 20077441 is about 271.7916558025.

The spelling of 20077441 in words is "twenty million, seventy-seven thousand, four hundred forty-one".