47772775 has 6 divisors (see below), whose sum is σ = 59238272. Its totient is φ = 38218200.

The previous prime is 47772761. The next prime is 47772779. The reversal of 47772775 is 57727774.

It is not a de Polignac number, because 47772775 - 2⁵ = 47772743 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 (47772779) 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, 955431 + ... + 955480.

Almost surely, 2^47772775 is an apocalyptic number.

47772775 is a deficient number, since it is larger than the sum of its proper divisors (11465497).

47772775 is a wasteful number, since it uses less digits than its factorization.

47772775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910921 (or 1910916 counting only the distinct ones).

The product of its digits is 672280, while the sum is 46.

The square root of 47772775 is about 6911.7852252511. The cubic root of 47772775 is about 362.8497456856.

The spelling of 47772775 in words is "forty-seven million, seven hundred seventy-two thousand, seven hundred seventy-five".