8725730 has 16 divisors (see below), whose sum is σ = 16914744. Its totient is φ = 3221760.

The previous prime is 8725699. The next prime is 8725733. The reversal of 8725730 is 375278.

It can be written as a sum of positive squares in 4 ways, for example, as 5424241 + 3301489 = 2329^2 + 1817^2 .

It is a super-2 number, since 2×8725730² = 152276728065800, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8725733) 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, 33431 + ... + 33690.

Almost surely, 2^8725730 is an apocalyptic number.

8725730 is a deficient number, since it is larger than the sum of its proper divisors (8189014).

8725730 is a wasteful number, since it uses less digits than its factorization.

8725730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67141.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 8725730 is about 2953.9346641387. The cubic root of 8725730 is about 205.8735674362.

The spelling of 8725730 in words is "eight million, seven hundred twenty-five thousand, seven hundred thirty".