47777441 has 4 divisors (see below), whose sum is σ = 47821332. Its totient is φ = 47733552.

The previous prime is 47777437. The next prime is 47777461. The reversal of 47777441 is 14477774.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3168400 + 44609041 = 1780^2 + 6679^2 .

It is a cyclic number.

It is not a de Polignac number, because 47777441 - 2² = 47777437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47777461) 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, 20270 + ... + 22503.

It is an arithmetic number, because the mean of its divisors is an integer number (11955333).

Almost surely, 2^47777441 is an apocalyptic number.

It is an amenable number.

47777441 is a deficient number, since it is larger than the sum of its proper divisors (43891).

47777441 is a wasteful number, since it uses less digits than its factorization.

47777441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43890.

The product of its digits is 153664, while the sum is 41.

The square root of 47777441 is about 6912.1227564331. The cubic root of 47777441 is about 362.8615585630.

The spelling of 47777441 in words is "forty-seven million, seven hundred seventy-seven thousand, four hundred forty-one".