47072577 has 4 divisors (see below), whose sum is σ = 62763440. Its totient is φ = 31381716.

The previous prime is 47072569. The next prime is 47072581. The reversal of 47072577 is 77527074.

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 not a de Polignac number, because 47072577 - 2³ = 47072569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47072567) 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 3 ways as a sum of consecutive naturals, for example, 7845427 + ... + 7845432.

It is an arithmetic number, because the mean of its divisors is an integer number (15690860).

Almost surely, 2^47072577 is an apocalyptic number.

It is an amenable number.

47072577 is a deficient number, since it is larger than the sum of its proper divisors (15690863).

47072577 is a wasteful number, since it uses less digits than its factorization.

47072577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15690862.

The product of its (nonzero) digits is 96040, while the sum is 39.

The square root of 47072577 is about 6860.9457802842. The cubic root of 47072577 is about 361.0682697649.

The spelling of 47072577 in words is "forty-seven million, seventy-two thousand, five hundred seventy-seven".