4179921 has 8 divisors (see below), whose sum is σ = 5586624. Its totient is φ = 2779920.

The previous prime is 4179919. The next prime is 4179941. The reversal of 4179921 is 1299714.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4179921 - 2¹ = 4179919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4179941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31 + ... + 2891.

It is an arithmetic number, because the mean of its divisors is an integer number (698328).

Almost surely, 2^4179921 is an apocalyptic number.

It is an amenable number.

4179921 is a deficient number, since it is larger than the sum of its proper divisors (1406703).

4179921 is a wasteful number, since it uses less digits than its factorization.

4179921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351.

The product of its digits is 4536, while the sum is 33.

The square root of 4179921 is about 2044.4855098533. The cubic root of 4179921 is about 161.0853424062.

The spelling of 4179921 in words is "four million, one hundred seventy-nine thousand, nine hundred twenty-one".