8399266 has 4 divisors (see below), whose sum is σ = 12598902. Its totient is φ = 4199632.

The previous prime is 8399263. The next prime is 8399267. The reversal of 8399266 is 6629938.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4498641 + 3900625 = 2121^2 + 1975^2 .

It is not an unprimeable number, because it can be changed into a prime (8399263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2099815 + ... + 2099818.

Almost surely, 2^8399266 is an apocalyptic number.

8399266 is a deficient number, since it is larger than the sum of its proper divisors (4199636).

8399266 is a wasteful number, since it uses less digits than its factorization.

8399266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199635.

The product of its digits is 139968, while the sum is 43.

The square root of 8399266 is about 2898.1487194414. The cubic root of 8399266 is about 203.2733502784.

It can be divided in two parts, 8 and 399266, that multiplied together give a triangular number (3194128 = T₂₅₂₇).

The spelling of 8399266 in words is "eight million, three hundred ninety-nine thousand, two hundred sixty-six".