87024745 has 4 divisors (see below), whose sum is σ = 104429700. Its totient is φ = 69619792.

The previous prime is 87024739. The next prime is 87024761. The reversal of 87024745 is 54742078.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37124649 + 49900096 = 6093^2 + 7064^2 .

It is a cyclic number.

It is not a de Polignac number, because 87024745 - 2⁵ = 87024713 is a prime.

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, 8702470 + ... + 8702479.

It is an arithmetic number, because the mean of its divisors is an integer number (26107425).

Almost surely, 2^87024745 is an apocalyptic number.

It is an amenable number.

87024745 is a deficient number, since it is larger than the sum of its proper divisors (17404955).

87024745 is a wasteful number, since it uses less digits than its factorization.

87024745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17404954.

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 87024745 is about 9328.7054300155. The cubic root of 87024745 is about 443.1467682535.

The spelling of 87024745 in words is "eighty-seven million, twenty-four thousand, seven hundred forty-five".