4172643 has 6 divisors (see below), whose sum is σ = 6027164. Its totient is φ = 2781756.

The previous prime is 4172639. The next prime is 4172653. The reversal of 4172643 is 3462714.

4172643 is a `hidden beast` number, since 4 + 17 + 2 + 643 = 666.

It is not a de Polignac number, because 4172643 - 2² = 4172639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4172653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 231805 + ... + 231822.

Almost surely, 2^4172643 is an apocalyptic number.

4172643 is a deficient number, since it is larger than the sum of its proper divisors (1854521).

4172643 is a wasteful number, since it uses less digits than its factorization.

4172643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463633 (or 463630 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 4172643 is about 2042.7048244913. The cubic root of 4172643 is about 160.9917951659.

The spelling of 4172643 in words is "four million, one hundred seventy-two thousand, six hundred forty-three".