5398666 has 16 divisors (see below), whose sum is σ = 9967104. Its totient is φ = 2135664.

The previous prime is 5398597. The next prime is 5398697. The reversal of 5398666 is 6668935.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14650 + ... + 15013.

It is an arithmetic number, because the mean of its divisors is an integer number (622944).

Almost surely, 2^5398666 is an apocalyptic number.

5398666 is a deficient number, since it is larger than the sum of its proper divisors (4568438).

5398666 is a wasteful number, since it uses less digits than its factorization.

5398666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29685.

The product of its digits is 233280, while the sum is 43.

The square root of 5398666 is about 2323.5029588963. The cubic root of 5398666 is about 175.4266162894.

The spelling of 5398666 in words is "five million, three hundred ninety-eight thousand, six hundred sixty-six".