402080671 has 2 divisors, whose sum is σ = 402080672. Its totient is φ = 402080670.

The previous prime is 402080647. The next prime is 402080747. The reversal of 402080671 is 176080204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402080671 - 2⁷ = 402080543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402080771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201040335 + 201040336.

It is an arithmetic number, because the mean of its divisors is an integer number (201040336).

Almost surely, 2^402080671 is an apocalyptic number.

402080671 is a deficient number, since it is larger than the sum of its proper divisors (1).

402080671 is an equidigital number, since it uses as much as digits as its factorization.

402080671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 402080671 is about 20051.9493067382. The cubic root of 402080671 is about 738.0816339022.

The spelling of 402080671 in words is "four hundred two million, eighty thousand, six hundred seventy-one".