2047647431 has 2 divisors, whose sum is σ = 2047647432. Its totient is φ = 2047647430.

The previous prime is 2047647419. The next prime is 2047647439. The reversal of 2047647431 is 1347467402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2047647431 - 2²² = 2043453127 is a prime.

It is a super-2 number, since 2×2047647431² = 8385720003361799522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2047647439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023823715 + 1023823716.

It is an arithmetic number, because the mean of its divisors is an integer number (1023823716).

Almost surely, 2^2047647431 is an apocalyptic number.

2047647431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2047647431 is an equidigital number, since it uses as much as digits as its factorization.

2047647431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 2047647431 is about 45250.9384543569. The cubic root of 2047647431 is about 1269.8479639026.

The spelling of 2047647431 in words is "two billion, forty-seven million, six hundred forty-seven thousand, four hundred thirty-one".