4128706 has 4 divisors (see below), whose sum is σ = 6193062. Its totient is φ = 2064352.

The previous prime is 4128697. The next prime is 4128713. The reversal of 4128706 is 6078214.

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., 3045025 + 1083681 = 1745^2 + 1041^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032175 + ... + 1032178.

Almost surely, 2^4128706 is an apocalyptic number.

4128706 is a deficient number, since it is larger than the sum of its proper divisors (2064356).

4128706 is a wasteful number, since it uses less digits than its factorization.

4128706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064355.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 4128706 is about 2031.9217504619. The cubic root of 4128706 is about 160.4247309002.

The spelling of 4128706 in words is "four million, one hundred twenty-eight thousand, seven hundred six".