402000047 has 2 divisors, whose sum is σ = 402000048. Its totient is φ = 402000046.

The previous prime is 402000031. The next prime is 402000073. The reversal of 402000047 is 740000204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402000047 - 2⁴ = 402000031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 401999989 and 402000034.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402000007) 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, 201000023 + 201000024.

It is an arithmetic number, because the mean of its divisors is an integer number (201000024).

Almost surely, 2^402000047 is an apocalyptic number.

402000047 is a deficient number, since it is larger than the sum of its proper divisors (1).

402000047 is an equidigital number, since it uses as much as digits as its factorization.

402000047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 402000047 is about 20049.9388278369. The cubic root of 402000047 is about 738.0322979723.

The spelling of 402000047 in words is "four hundred two million, forty-seven", and thus it is an aban number.