3074807721 has 8 divisors (see below), whose sum is σ = 4157486784. Its totient is φ = 2021000240.

The previous prime is 3074807711. The next prime is 3074807759. The reversal of 3074807721 is 1277084703.

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 3074807721 - 2¹⁵ = 3074774953 is a prime.

It is a super-2 number, since 2×3074807721² = 18908885042242427682, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3074807721.

It is not an unprimeable number, because it can be changed into a prime (3074807711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7217646 + ... + 7218071.

It is an arithmetic number, because the mean of its divisors is an integer number (519685848).

Almost surely, 2^3074807721 is an apocalyptic number.

It is an amenable number.

3074807721 is a deficient number, since it is larger than the sum of its proper divisors (1082679063).

3074807721 is a wasteful number, since it uses less digits than its factorization.

3074807721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14435791.

The product of its (nonzero) digits is 65856, while the sum is 39.

The square root of 3074807721 is about 55450.9487835871. The cubic root of 3074807721 is about 1454.1392185440.

The spelling of 3074807721 in words is "three billion, seventy-four million, eight hundred seven thousand, seven hundred twenty-one".