3801679721 has 8 divisors (see below), whose sum is σ = 4373937600. Its totient is φ = 3236712048.

The previous prime is 3801679703. The next prime is 3801679727. The reversal of 3801679721 is 1279761083.

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

It is a cyclic number.

It is not a de Polignac number, because 3801679721 - 2¹⁰ = 3801678697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3801679727) 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, 1821431 + ... + 1823516.

It is an arithmetic number, because the mean of its divisors is an integer number (546742200).

Almost surely, 2^3801679721 is an apocalyptic number.

It is an amenable number.

3801679721 is a deficient number, since it is larger than the sum of its proper divisors (572257879).

3801679721 is a wasteful number, since it uses less digits than its factorization.

3801679721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645103.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 3801679721 is about 61657.7628608110. The cubic root of 3801679721 is about 1560.7206457046.

The spelling of 3801679721 in words is "three billion, eight hundred one million, six hundred seventy-nine thousand, seven hundred twenty-one".