47030247 has 16 divisors (see below), whose sum is σ = 76008960. Its totient is φ = 28503000.

The previous prime is 47030231. The next prime is 47030287. The reversal of 47030247 is 74203074.

It is not a de Polignac number, because 47030247 - 2⁴ = 47030231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 47030247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47030287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78879 + ... + 79472.

It is an arithmetic number, because the mean of its divisors is an integer number (4750560).

Almost surely, 2^47030247 is an apocalyptic number.

47030247 is a deficient number, since it is larger than the sum of its proper divisors (28978713).

47030247 is a wasteful number, since it uses less digits than its factorization.

47030247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158371 (or 158365 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 47030247 is about 6857.8602347963. The cubic root of 47030247 is about 360.9600071308.

The spelling of 47030247 in words is "forty-seven million, thirty thousand, two hundred forty-seven".