47760729 has 4 divisors (see below), whose sum is σ = 63680976. Its totient is φ = 31840484.

The previous prime is 47760721. The next prime is 47760731. The reversal of 47760729 is 92706774.

47760729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47760729 - 2³ = 47760721 is a prime.

It is a super-2 number, since 2×47760729² = 4562174469222882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47760721) 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 3 ways as a sum of consecutive naturals, for example, 7960119 + ... + 7960124.

It is an arithmetic number, because the mean of its divisors is an integer number (15920244).

Almost surely, 2^47760729 is an apocalyptic number.

It is an amenable number.

47760729 is a deficient number, since it is larger than the sum of its proper divisors (15920247).

47760729 is a wasteful number, since it uses less digits than its factorization.

47760729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15920246.

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 47760729 is about 6910.9137601333. The cubic root of 47760729 is about 362.8192453608.

The spelling of 47760729 in words is "forty-seven million, seven hundred sixty thousand, seven hundred twenty-nine".