47520689 has 4 divisors (see below), whose sum is σ = 47534580. Its totient is φ = 47506800.

The previous prime is 47520679. The next prime is 47520731. The reversal of 47520689 is 98602574.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 29073664 + 18447025 = 5392^2 + 4295^2 .

It is a cyclic number.

It is not a de Polignac number, because 47520689 - 2⁴ = 47520673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47520659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2207 + ... + 9995.

It is an arithmetic number, because the mean of its divisors is an integer number (11883645).

Almost surely, 2^47520689 is an apocalyptic number.

It is an amenable number.

47520689 is a deficient number, since it is larger than the sum of its proper divisors (13891).

47520689 is an equidigital number, since it uses as much as digits as its factorization.

47520689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13890.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 47520689 is about 6893.5251504582. The cubic root of 47520689 is about 362.2103947729.

The spelling of 47520689 in words is "forty-seven million, five hundred twenty thousand, six hundred eighty-nine".