47992775 has 6 divisors (see below), whose sum is σ = 59511072. Its totient is φ = 38394200.

The previous prime is 47992771. The next prime is 47992793. The reversal of 47992775 is 57729974.

It is not a de Polignac number, because 47992775 - 2² = 47992771 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 (47992771) 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, 959831 + ... + 959880.

It is an arithmetic number, because the mean of its divisors is an integer number (9918512).

Almost surely, 2^47992775 is an apocalyptic number.

47992775 is a deficient number, since it is larger than the sum of its proper divisors (11518297).

47992775 is a wasteful number, since it uses less digits than its factorization.

47992775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919721 (or 1919716 counting only the distinct ones).

The product of its digits is 1111320, while the sum is 50.

The square root of 47992775 is about 6927.6817911910. The cubic root of 47992775 is about 363.4058833511.

The spelling of 47992775 in words is "forty-seven million, nine hundred ninety-two thousand, seven hundred seventy-five".