5437666 has 16 divisors (see below), whose sum is σ = 8999928. Its totient is φ = 2448000.

The previous prime is 5437643. The next prime is 5437699. The reversal of 5437666 is 6667345.

It can be written as a sum of positive squares in 4 ways, for example, as 531441 + 4906225 = 729^2 + 2215^2 .

It is an Ulam number.

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, 1485 + ... + 3616.

Almost surely, 2^5437666 is an apocalyptic number.

5437666 is a deficient number, since it is larger than the sum of its proper divisors (3562262).

5437666 is a wasteful number, since it uses less digits than its factorization.

5437666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157.

The product of its digits is 90720, while the sum is 37.

The square root of 5437666 is about 2331.8803571367. The cubic root of 5437666 is about 175.8480308362.

The spelling of 5437666 in words is "five million, four hundred thirty-seven thousand, six hundred sixty-six".