47592721 has 4 divisors (see below), whose sum is σ = 51919344. Its totient is φ = 43266100.

The previous prime is 47592709. The next prime is 47592731. The reversal of 47592721 is 12729574.

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 47592721 - 2¹³ = 47584529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47592731) 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, 2163295 + ... + 2163316.

It is an arithmetic number, because the mean of its divisors is an integer number (12979836).

Almost surely, 2^47592721 is an apocalyptic number.

It is an amenable number.

47592721 is a deficient number, since it is larger than the sum of its proper divisors (4326623).

47592721 is a wasteful number, since it uses less digits than its factorization.

47592721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326622.

The product of its digits is 35280, while the sum is 37.

The square root of 47592721 is about 6898.7477849244. The cubic root of 47592721 is about 362.3933155735.

The spelling of 47592721 in words is "forty-seven million, five hundred ninety-two thousand, seven hundred twenty-one".