47509272 has 48 divisors (see below), whose sum is σ = 135447000. Its totient is φ = 15002496.

The previous prime is 47509247. The next prime is 47509307. The reversal of 47509272 is 27290574.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15997 + ... + 18732.

Almost surely, 2^47509272 is an apocalyptic number.

It is an amenable number.

47509272 is an abundant number, since it is smaller than the sum of its proper divisors (87937728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47509272 is a wasteful number, since it uses less digits than its factorization.

47509272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34760 (or 34753 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 47509272 is about 6892.6970048015. The cubic root of 47509272 is about 362.1813850413.

The spelling of 47509272 in words is "forty-seven million, five hundred nine thousand, two hundred seventy-two".