3080721 has 8 divisors (see below), whose sum is σ = 4694464. Its totient is φ = 1760400.

The previous prime is 3080713. The next prime is 3080729. The reversal of 3080721 is 1270803.

It is an interprime number because it is at equal distance from previous prime (3080713) and next prime (3080729).

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

It is not a de Polignac number, because 3080721 - 2³ = 3080713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 146701 = 3080721 / (3 + 0 + 8 + 0 + 7 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3080729) 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, 73330 + ... + 73371.

It is an arithmetic number, because the mean of its divisors is an integer number (586808).

Almost surely, 2^3080721 is an apocalyptic number.

It is an amenable number.

3080721 is a deficient number, since it is larger than the sum of its proper divisors (1613743).

3080721 is a wasteful number, since it uses less digits than its factorization.

3080721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146711.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 3080721 is about 1755.1982793975. The cubic root of 3080721 is about 145.5070791657.

The spelling of 3080721 in words is "three million, eighty thousand, seven hundred twenty-one".