402746843 has 2 divisors, whose sum is σ = 402746844. Its totient is φ = 402746842.

The previous prime is 402746833. The next prime is 402746863. The reversal of 402746843 is 348647204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402746843 - 2⁸ = 402746587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402746797 and 402746806.

It is not a weakly prime, because it can be changed into another prime (402746833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201373421 + 201373422.

It is an arithmetic number, because the mean of its divisors is an integer number (201373422).

Almost surely, 2^402746843 is an apocalyptic number.

402746843 is a deficient number, since it is larger than the sum of its proper divisors (1).

402746843 is an equidigital number, since it uses as much as digits as its factorization.

402746843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 402746843 is about 20068.5535851491. The cubic root of 402746843 is about 738.4890297789.

The spelling of 402746843 in words is "four hundred two million, seven hundred forty-six thousand, eight hundred forty-three".