47776613 has 6 divisors (see below), whose sum is σ = 50752626. Its totient is φ = 44965952.

The previous prime is 47776577. The next prime is 47776627. The reversal of 47776613 is 31667774.

It can be written as a sum of positive squares in 3 ways, for example, as 4190209 + 43586404 = 2047^2 + 6602^2 .

It is not a de Polignac number, because 47776613 - 2¹⁰ = 47775589 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 (47775613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 82370 + ... + 82947.

It is an arithmetic number, because the mean of its divisors is an integer number (8458771).

Almost surely, 2^47776613 is an apocalyptic number.

It is an amenable number.

47776613 is a deficient number, since it is larger than the sum of its proper divisors (2976013).

47776613 is a wasteful number, since it uses less digits than its factorization.

47776613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165351 (or 165334 counting only the distinct ones).

The product of its digits is 148176, while the sum is 41.

The square root of 47776613 is about 6912.0628614040. The cubic root of 47776613 is about 362.8594623777.

The spelling of 47776613 in words is "forty-seven million, seven hundred seventy-six thousand, six hundred thirteen".