5389666 has 4 divisors (see below), whose sum is σ = 8084502. Its totient is φ = 2694832.

The previous prime is 5389649. The next prime is 5389693. The reversal of 5389666 is 6669835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6669835 = 5 ⋅1333967.

It can be written as a sum of positive squares in only one way, i.e., 4347225 + 1042441 = 2085^2 + 1021^2 .

It is an unprimeable number.

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, 1347415 + ... + 1347418.

Almost surely, 2^5389666 is an apocalyptic number.

5389666 is a deficient number, since it is larger than the sum of its proper divisors (2694836).

5389666 is a wasteful number, since it uses less digits than its factorization.

5389666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694835.

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

The square root of 5389666 is about 2321.5654201422. The cubic root of 5389666 is about 175.3290787551.

The spelling of 5389666 in words is "five million, three hundred eighty-nine thousand, six hundred sixty-six".