8020730 has 8 divisors (see below), whose sum is σ = 14437332. Its totient is φ = 3208288.

The previous prime is 8020709. The next prime is 8020751. The reversal of 8020730 is 370208.

It is an interprime number because it is at equal distance from previous prime (8020709) and next prime (8020751).

It can be written as a sum of positive squares in 2 ways, for example, as 7546009 + 474721 = 2747^2 + 689^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401027 + ... + 401046.

Almost surely, 2^8020730 is an apocalyptic number.

8020730 is a deficient number, since it is larger than the sum of its proper divisors (6416602).

8020730 is a wasteful number, since it uses less digits than its factorization.

8020730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802080.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 8020730 is about 2832.0893347492. The cubic root of 8020730 is about 200.1726010016.

Adding to 8020730 its reverse (370208), we get a palindrome (8390938).

The spelling of 8020730 in words is "eight million, twenty thousand, seven hundred thirty".