5387666 has 4 divisors (see below), whose sum is σ = 8081502. Its totient is φ = 2693832.

The previous prime is 5387653. The next prime is 5387677. The reversal of 5387666 is 6667835.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6667835 = 5 ⋅1333567.

It can be written as a sum of positive squares in only one way, i.e., 5387041 + 625 = 2321^2 + 25^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1346915 + ... + 1346918.

Almost surely, 2^5387666 is an apocalyptic number.

5387666 is a deficient number, since it is larger than the sum of its proper divisors (2693836).

5387666 is a wasteful number, since it uses less digits than its factorization.

5387666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693835.

The product of its digits is 181440, while the sum is 41.

The square root of 5387666 is about 2321.1346363363. The cubic root of 5387666 is about 175.3073890041.

The spelling of 5387666 in words is "five million, three hundred eighty-seven thousand, six hundred sixty-six".