47475777 has 8 divisors (see below), whose sum is σ = 63954016. Its totient is φ = 31324032.

The previous prime is 47475767. The next prime is 47475811. The reversal of 47475777 is 77757474.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47475777 - 2¹¹ = 47473729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47475767) 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 7 ways as a sum of consecutive naturals, for example, 81283 + ... + 81864.

It is an arithmetic number, because the mean of its divisors is an integer number (7994252).

Almost surely, 2^47475777 is an apocalyptic number.

It is an amenable number.

47475777 is a deficient number, since it is larger than the sum of its proper divisors (16478239).

47475777 is a wasteful number, since it uses less digits than its factorization.

47475777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163247.

The product of its digits is 1344560, while the sum is 48.

The square root of 47475777 is about 6890.2668308274. The cubic root of 47475777 is about 362.0962499576.

The spelling of 47475777 in words is "forty-seven million, four hundred seventy-five thousand, seven hundred seventy-seven".