4128673 has 4 divisors (see below), whose sum is σ = 4261888. Its totient is φ = 3995460.

The previous prime is 4128623. The next prime is 4128689. The reversal of 4128673 is 3768214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4128673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 133183 = 4128673 / (4 + 1 + 2 + 8 + 6 + 7 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4128613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66561 + ... + 66622.

It is an arithmetic number, because the mean of its divisors is an integer number (1065472).

Almost surely, 2^4128673 is an apocalyptic number.

It is an amenable number.

4128673 is a deficient number, since it is larger than the sum of its proper divisors (133215).

4128673 is a wasteful number, since it uses less digits than its factorization.

4128673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133214.

The product of its digits is 8064, while the sum is 31.

The square root of 4128673 is about 2031.9136300542. The cubic root of 4128673 is about 160.4243034838.

The spelling of 4128673 in words is "four million, one hundred twenty-eight thousand, six hundred seventy-three".