4947431 has 2 divisors, whose sum is σ = 4947432. Its totient is φ = 4947430.

The previous prime is 4947413. The next prime is 4947463. The reversal of 4947431 is 1347494.

It is a happy number.

Together with previous prime (4947413) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (4947463) can be obtained adding 4947431 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4947431 - 2⁶ = 4947367 is a prime.

It is a super-2 number, since 2×4947431² = 48954146999522, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4947331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2473715 + 2473716.

It is an arithmetic number, because the mean of its divisors is an integer number (2473716).

Almost surely, 2^4947431 is an apocalyptic number.

4947431 is a deficient number, since it is larger than the sum of its proper divisors (1).

4947431 is an equidigital number, since it uses as much as digits as its factorization.

4947431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 4947431 is about 2224.2821313853. The cubic root of 4947431 is about 170.3962039130.

The spelling of 4947431 in words is "four million, nine hundred forty-seven thousand, four hundred thirty-one".