47739757 has 16 divisors (see below), whose sum is σ = 54682992. Its totient is φ = 41287680.

The previous prime is 47739709. The next prime is 47739763. The reversal of 47739757 is 75793774.

It can be written as a sum of positive squares in 8 ways, for example, as 212521 + 47527236 = 461^2 + 6894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47739757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47739757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47739767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74157 + ... + 74797.

It is an arithmetic number, because the mean of its divisors is an integer number (3417687).

Almost surely, 2^47739757 is an apocalyptic number.

It is an amenable number.

47739757 is a deficient number, since it is larger than the sum of its proper divisors (6943235).

47739757 is a wasteful number, since it uses less digits than its factorization.

47739757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008.

The product of its digits is 1296540, while the sum is 49.

The square root of 47739757 is about 6909.3962833232. The cubic root of 47739757 is about 362.7661322742.

The spelling of 47739757 in words is "forty-seven million, seven hundred thirty-nine thousand, seven hundred fifty-seven".