47485877 has 12 divisors (see below), whose sum is σ = 49285164. Its totient is φ = 45736320.

The previous prime is 47485871. The next prime is 47485891. The reversal of 47485877 is 77858474.

It can be written as a sum of positive squares in 2 ways, for example, as 1164241 + 46321636 = 1079^2 + 6806^2 .

It is a de Polignac number, because none of the positive numbers 2^k-47485877 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 (47485871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 420173 + ... + 420285.

It is an arithmetic number, because the mean of its divisors is an integer number (4107097).

Almost surely, 2^47485877 is an apocalyptic number.

It is an amenable number.

47485877 is a deficient number, since it is larger than the sum of its proper divisors (1799287).

47485877 is an equidigital number, since it uses as much as digits as its factorization.

47485877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 257 counting only the distinct ones).

The product of its digits is 1756160, while the sum is 50.

The square root of 47485877 is about 6890.9997097664. Note that the first 3 decimals coincide. The cubic root of 47485877 is about 362.1219255972.

The spelling of 47485877 in words is "forty-seven million, four hundred eighty-five thousand, eight hundred seventy-seven".