47687337 has 12 divisors (see below), whose sum is σ = 69322500. Its totient is φ = 31588128.

The previous prime is 47687327. The next prime is 47687369. The reversal of 47687337 is 73378674.

It can be written as a sum of positive squares in 2 ways, for example, as 30869136 + 16818201 = 5556^2 + 4101^2 .

It is not a de Polignac number, because 47687337 - 2⁶ = 47687273 is a prime.

It is a super-2 number, since 2×47687337² = 4548164220303138, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47687292 and 47687301.

It is not an unprimeable number, because it can be changed into a prime (47687327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15462 + ... + 18287.

It is an arithmetic number, because the mean of its divisors is an integer number (5776875).

Almost surely, 2^47687337 is an apocalyptic number.

It is an amenable number.

47687337 is a deficient number, since it is larger than the sum of its proper divisors (21635163).

47687337 is a wasteful number, since it uses less digits than its factorization.

47687337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33912 (or 33909 counting only the distinct ones).

The product of its digits is 592704, while the sum is 45.

The square root of 47687337 is about 6905.6018564641. The cubic root of 47687337 is about 362.6333068176.

The spelling of 47687337 in words is "forty-seven million, six hundred eighty-seven thousand, three hundred thirty-seven".