8406719 has 2 divisors, whose sum is σ = 8406720. Its totient is φ = 8406718.

The previous prime is 8406689. The next prime is 8406737. The reversal of 8406719 is 9176048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8406719 - 2¹² = 8402623 is a prime.

It is a super-2 number, since 2×8406719² = 141345848689922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8406779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4203359 + 4203360.

It is an arithmetic number, because the mean of its divisors is an integer number (4203360).

Almost surely, 2^8406719 is an apocalyptic number.

8406719 is a deficient number, since it is larger than the sum of its proper divisors (1).

8406719 is an equidigital number, since it uses as much as digits as its factorization.

8406719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 8406719 is about 2899.4342551608. The cubic root of 8406719 is about 203.3334566573. Note that the first 3 decimals are identical.

The spelling of 8406719 in words is "eight million, four hundred six thousand, seven hundred nineteen".