47382731 has 8 divisors (see below), whose sum is σ = 51744000. Its totient is φ = 43030440.

The previous prime is 47382719. The next prime is 47382733. The reversal of 47382731 is 13728374.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47382731 - 2⁶ = 47382667 is a prime.

It is a super-2 number, since 2×47382731² = 4490246394036722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47382691 and 47382700.

It is not an unprimeable number, because it can be changed into a prime (47382733) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13850 + ... + 16928.

It is an arithmetic number, because the mean of its divisors is an integer number (6468000).

Almost surely, 2^47382731 is an apocalyptic number.

47382731 is a deficient number, since it is larger than the sum of its proper divisors (4361269).

47382731 is a wasteful number, since it uses less digits than its factorization.

47382731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489.

The product of its digits is 28224, while the sum is 35.

The square root of 47382731 is about 6883.5115311881. The cubic root of 47382731 is about 361.8595422854.

The spelling of 47382731 in words is "forty-seven million, three hundred eighty-two thousand, seven hundred thirty-one".