8406287 has 2 divisors, whose sum is σ = 8406288. Its totient is φ = 8406286.

The previous prime is 8406283. The next prime is 8406337. The reversal of 8406287 is 7826048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8406287 - 2² = 8406283 is a prime.

It is a super-2 number, since 2×8406287² = 141331322252738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8406283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4203143 + 4203144.

It is an arithmetic number, because the mean of its divisors is an integer number (4203144).

Almost surely, 2^8406287 is an apocalyptic number.

8406287 is a deficient number, since it is larger than the sum of its proper divisors (1).

8406287 is an equidigital number, since it uses as much as digits as its factorization.

8406287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 8406287 is about 2899.3597569119. The cubic root of 8406287 is about 203.3299736672.

The spelling of 8406287 in words is "eight million, four hundred six thousand, two hundred eighty-seven".