416402687 has 2 divisors, whose sum is σ = 416402688. Its totient is φ = 416402686.

The previous prime is 416402659. The next prime is 416402737. The reversal of 416402687 is 786204614.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 416402687 - 2¹⁶ = 416337151 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 416402687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (416402087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208201343 + 208201344.

It is an arithmetic number, because the mean of its divisors is an integer number (208201344).

Almost surely, 2^416402687 is an apocalyptic number.

416402687 is a deficient number, since it is larger than the sum of its proper divisors (1).

416402687 is an equidigital number, since it uses as much as digits as its factorization.

416402687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 416402687 is about 20405.9473438505. The cubic root of 416402687 is about 746.7430244729.

The spelling of 416402687 in words is "four hundred sixteen million, four hundred two thousand, six hundred eighty-seven".