4172649 has 16 divisors (see below), whose sum is σ = 6058752. Its totient is φ = 2539008.

The previous prime is 4172639. The next prime is 4172653. The reversal of 4172649 is 9462714.

It is a happy number.

It is not a de Polignac number, because 4172649 - 2⁷ = 4172521 is a prime.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4172639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3232 + ... + 4334.

It is an arithmetic number, because the mean of its divisors is an integer number (378672).

Almost surely, 2^4172649 is an apocalyptic number.

It is an amenable number.

4172649 is a deficient number, since it is larger than the sum of its proper divisors (1886103).

4172649 is a wasteful number, since it uses less digits than its factorization.

4172649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216.

The product of its digits is 12096, while the sum is 33.

The square root of 4172649 is about 2042.7062931317. The cubic root of 4172649 is about 160.9918723312.

The spelling of 4172649 in words is "four million, one hundred seventy-two thousand, six hundred forty-nine".