47773731 has 16 divisors (see below), whose sum is σ = 65542400. Its totient is φ = 30935520.

The previous prime is 47773727. The next prime is 47773741. The reversal of 47773731 is 13737774.

47773731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47773731 - 2² = 47773727 is a prime.

It is a super-2 number, since 2×47773731² = 4564658747320722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47773731.

It is not an unprimeable number, because it can be changed into a prime (47773711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24741 + ... + 26601.

It is an arithmetic number, because the mean of its divisors is an integer number (4096400).

Almost surely, 2^47773731 is an apocalyptic number.

47773731 is a deficient number, since it is larger than the sum of its proper divisors (17768669).

47773731 is a wasteful number, since it uses less digits than its factorization.

47773731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106.

The product of its digits is 86436, while the sum is 39.

The square root of 47773731 is about 6911.8543821467. The cubic root of 47773731 is about 362.8521660463.

The spelling of 47773731 in words is "forty-seven million, seven hundred seventy-three thousand, seven hundred thirty-one".