47723531 has 8 divisors (see below), whose sum is σ = 50047680. Its totient is φ = 45444672.

The previous prime is 47723527. The next prime is 47723537. The reversal of 47723531 is 13532774.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47723531 - 2² = 47723527 is a prime.

It is a super-2 number, since 2×47723531² = 4555070822215922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47723537) 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 7 ways as a sum of consecutive naturals, for example, 9155 + ... + 13388.

It is an arithmetic number, because the mean of its divisors is an integer number (6255960).

Almost surely, 2^47723531 is an apocalyptic number.

47723531 is a deficient number, since it is larger than the sum of its proper divisors (2324149).

47723531 is a wasteful number, since it uses less digits than its factorization.

47723531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22645.

The product of its digits is 17640, while the sum is 32.

The square root of 47723531 is about 6908.2219854316. The cubic root of 47723531 is about 362.7250280971.

The spelling of 47723531 in words is "forty-seven million, seven hundred twenty-three thousand, five hundred thirty-one".