8270730 has 48 divisors (see below), whose sum is σ = 23161320. Its totient is φ = 2035584.

The previous prime is 8270711. The next prime is 8270737. The reversal of 8270730 is 370728.

It can be written as a sum of positive squares in 4 ways, for example, as 4549689 + 3721041 = 2133^2 + 1929^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8270694 and 8270703.

It is not an unprimeable number, because it can be changed into a prime (8270737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2365 + ... + 4704.

Almost surely, 2^8270730 is an apocalyptic number.

8270730 is an abundant number, since it is smaller than the sum of its proper divisors (14890590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8270730 is a wasteful number, since it uses less digits than its factorization.

8270730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7095 (or 7092 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 8270730 is about 2875.8876890449. The cubic root of 8270730 is about 202.2311017091.

The spelling of 8270730 in words is "eight million, two hundred seventy thousand, seven hundred thirty".