47257756 has 72 divisors (see below), whose sum is σ = 109798416. Its totient is φ = 17579520.

The previous prime is 47257751. The next prime is 47257811. The reversal of 47257756 is 65775274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47257751) 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 23 ways as a sum of consecutive naturals, for example, 42771 + ... + 43861.

It is an arithmetic number, because the mean of its divisors is an integer number (1524978).

Almost surely, 2^47257756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47257756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54899208).

47257756 is an abundant number, since it is smaller than the sum of its proper divisors (62540660).

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

47257756 is a wasteful number, since it uses less digits than its factorization.

47257756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1130 counting only the distinct ones).

The product of its digits is 411600, while the sum is 43.

The square root of 47257756 is about 6874.4276852695. The cubic root of 47257756 is about 361.5411195635.

The spelling of 47257756 in words is "forty-seven million, two hundred fifty-seven thousand, seven hundred fifty-six".