474039647 has 2 divisors, whose sum is σ = 474039648. Its totient is φ = 474039646.

The previous prime is 474039641. The next prime is 474039649. The reversal of 474039647 is 746930474.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-474039647 is a prime.

Together with 474039649, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 474039598 and 474039607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (474039641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237019823 + 237019824.

It is an arithmetic number, because the mean of its divisors is an integer number (237019824).

Almost surely, 2^474039647 is an apocalyptic number.

474039647 is a deficient number, since it is larger than the sum of its proper divisors (1).

474039647 is an equidigital number, since it uses as much as digits as its factorization.

474039647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 44.

The square root of 474039647 is about 21772.4515615491. The cubic root of 474039647 is about 779.7191883087.

The spelling of 474039647 in words is "four hundred seventy-four million, thirty-nine thousand, six hundred forty-seven".