87248730 has 16 divisors (see below), whose sum is σ = 209397024. Its totient is φ = 23266320.

The previous prime is 87248719. The next prime is 87248767. The reversal of 87248730 is 3784278.

It is a super-2 number, since 2×87248730² = 15224681773225800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1454116 + ... + 1454175.

It is an arithmetic number, because the mean of its divisors is an integer number (13087314).

Almost surely, 2^87248730 is an apocalyptic number.

87248730 is an abundant number, since it is smaller than the sum of its proper divisors (122148294).

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

87248730 is a wasteful number, since it uses less digits than its factorization.

87248730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2908301.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 87248730 is about 9340.7028643459. The cubic root of 87248730 is about 443.5266341305.

It can be divided in two parts, 87248 and 730, that added together give a palindrome (87978).

The spelling of 87248730 in words is "eighty-seven million, two hundred forty-eight thousand, seven hundred thirty".