47342477 has 18 divisors (see below), whose sum is σ = 59644458. Its totient is φ = 37451232.

The previous prime is 47342473. The next prime is 47342479. The reversal of 47342477 is 77424374.

It is a happy number.

47342477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 90601 + 47251876 = 301^2 + 6874^2 .

It is not a de Polignac number, because 47342477 - 2² = 47342473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47342477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47342473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5423 + ... + 11139.

It is an arithmetic number, because the mean of its divisors is an integer number (3313581).

Almost surely, 2^47342477 is an apocalyptic number.

It is an amenable number.

47342477 is a deficient number, since it is larger than the sum of its proper divisors (12301981).

47342477 is a wasteful number, since it uses less digits than its factorization.

47342477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757 (or 5737 counting only the distinct ones).

The product of its digits is 131712, while the sum is 38.

The square root of 47342477 is about 6880.5869662406. The cubic root of 47342477 is about 361.7570406596.

The spelling of 47342477 in words is "forty-seven million, three hundred forty-two thousand, four hundred seventy-seven".