402134347 has 2 divisors, whose sum is σ = 402134348. Its totient is φ = 402134346.

The previous prime is 402134311. The next prime is 402134353. The reversal of 402134347 is 743431204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 402134347 - 2⁷ = 402134219 is a prime.

It is not a weakly prime, because it can be changed into another prime (402134357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201067173 + 201067174.

It is an arithmetic number, because the mean of its divisors is an integer number (201067174).

Almost surely, 2^402134347 is an apocalyptic number.

402134347 is a deficient number, since it is larger than the sum of its proper divisors (1).

402134347 is an equidigital number, since it uses as much as digits as its factorization.

402134347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 402134347 is about 20053.2876855642. The cubic root of 402134347 is about 738.1144759908.

The spelling of 402134347 in words is "four hundred two million, one hundred thirty-four thousand, three hundred forty-seven".