47777413 has 4 divisors (see below), whose sum is σ = 49424940. Its totient is φ = 46129888.

The previous prime is 47777407. The next prime is 47777437. The reversal of 47777413 is 31477774.

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 37234404 + 10543009 = 6102^2 + 3247^2 .

It is a cyclic number.

It is not a de Polignac number, because 47777413 - 2⁹ = 47776901 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 (47777473) 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, 823720 + ... + 823777.

It is an arithmetic number, because the mean of its divisors is an integer number (12356235).

Almost surely, 2^47777413 is an apocalyptic number.

It is an amenable number.

47777413 is a deficient number, since it is larger than the sum of its proper divisors (1647527).

47777413 is a wasteful number, since it uses less digits than its factorization.

47777413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647526.

The product of its digits is 115248, while the sum is 40.

The square root of 47777413 is about 6912.1207310058. The cubic root of 47777413 is about 362.8614876779.

The spelling of 47777413 in words is "forty-seven million, seven hundred seventy-seven thousand, four hundred thirteen".