47487312 has 30 divisors (see below), whose sum is σ = 132898922. Its totient is φ = 15829056.

The previous prime is 47487299. The next prime is 47487337. The reversal of 47487312 is 21378474.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 47279376 + 207936 = 6876^2 + 456^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 164743 + ... + 165030.

Almost surely, 2^47487312 is an apocalyptic number.

It is an amenable number.

47487312 is an abundant number, since it is smaller than the sum of its proper divisors (85411610).

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

47487312 is a wasteful number, since it uses less digits than its factorization.

47487312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329787 (or 329778 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 47487312 is about 6891.1038303018. The cubic root of 47487312 is about 362.1255732763.

The spelling of 47487312 in words is "forty-seven million, four hundred eighty-seven thousand, three hundred twelve".