47309832 has 40 divisors (see below), whose sum is σ = 132513150. Its totient is φ = 15769728.

The previous prime is 47309809. The next prime is 47309833. The reversal of 47309832 is 23890374.

It can be written as a sum of positive squares in only one way, i.e., 45077796 + 2232036 = 6714^2 + 1494^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47309833) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 35857 + ... + 37152.

Almost surely, 2^47309832 is an apocalyptic number.

It is an amenable number.

47309832 is an abundant number, since it is smaller than the sum of its proper divisors (85203318).

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

47309832 is a wasteful number, since it uses less digits than its factorization.

47309832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73027 (or 73014 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 47309832 is about 6878.2143031458. The cubic root of 47309832 is about 361.6738716973.

The spelling of 47309832 in words is "forty-seven million, three hundred nine thousand, eight hundred thirty-two".