47867231 has 6 divisors (see below), whose sum is σ = 48695832. Its totient is φ = 47052500.

The previous prime is 47867221. The next prime is 47867273. The reversal of 47867231 is 13276874.

It is a de Polignac number, because none of the positive numbers 2^k-47867231 is a prime.

It is a super-2 number, since 2×47867231² = 4582543607214722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47867221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3395 + ... + 10356.

It is an arithmetic number, because the mean of its divisors is an integer number (8115972).

Almost surely, 2^47867231 is an apocalyptic number.

47867231 is a deficient number, since it is larger than the sum of its proper divisors (828601).

47867231 is an equidigital number, since it uses as much as digits as its factorization.

47867231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13869 (or 13810 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 47867231 is about 6918.6148180109. The cubic root of 47867231 is about 363.0887295840.

The spelling of 47867231 in words is "forty-seven million, eight hundred sixty-seven thousand, two hundred thirty-one".