47302831 has 2 divisors, whose sum is σ = 47302832. Its totient is φ = 47302830.

The previous prime is 47302819. The next prime is 47302859. The reversal of 47302831 is 13820374.

It is an a-pointer prime, because the next prime (47302859) can be obtained adding 47302831 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47302831 - 2⁹ = 47302319 is a prime.

It is a super-2 number, since 2×47302831² = 4475115641229122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47302831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47302811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23651415 + 23651416.

It is an arithmetic number, because the mean of its divisors is an integer number (23651416).

Almost surely, 2^47302831 is an apocalyptic number.

47302831 is a deficient number, since it is larger than the sum of its proper divisors (1).

47302831 is an equidigital number, since it uses as much as digits as its factorization.

47302831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 47302831 is about 6877.7053586207. The cubic root of 47302831 is about 361.6560304186.

The spelling of 47302831 in words is "forty-seven million, three hundred two thousand, eight hundred thirty-one".