47831455 has 32 divisors (see below), whose sum is σ = 73128960. Its totient is φ = 29237760.

The previous prime is 47831453. The next prime is 47831471. The reversal of 47831455 is 55413874.

It is not a de Polignac number, because 47831455 - 2¹ = 47831453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47831453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9190 + ... + 13420.

It is an arithmetic number, because the mean of its divisors is an integer number (2285280).

Almost surely, 2^47831455 is an apocalyptic number.

47831455 is a deficient number, since it is larger than the sum of its proper divisors (25297505).

47831455 is a wasteful number, since it uses less digits than its factorization.

47831455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4279.

The product of its digits is 67200, while the sum is 37.

The square root of 47831455 is about 6916.0288460937. The cubic root of 47831455 is about 362.9982494534.

The spelling of 47831455 in words is "forty-seven million, eight hundred thirty-one thousand, four hundred fifty-five".