47031247 has 8 divisors (see below), whose sum is σ = 48688640. Its totient is φ = 45382680.

The previous prime is 47031233. The next prime is 47031269. The reversal of 47031247 is 74213074.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47031247 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 (47031217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9748 + ... + 13750.

It is an arithmetic number, because the mean of its divisors is an integer number (6086080).

Almost surely, 2^47031247 is an apocalyptic number.

47031247 is a deficient number, since it is larger than the sum of its proper divisors (1657393).

47031247 is a wasteful number, since it uses less digits than its factorization.

47031247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 47031247 is about 6857.9331434478. The cubic root of 47031247 is about 360.9625654663.

It can be divided in two parts, 47031 and 247, that added together give a triangular number (47278 = T₃₀₇).

The spelling of 47031247 in words is "forty-seven million, thirty-one thousand, two hundred forty-seven".