87742753 has 4 divisors (see below), whose sum is σ = 100277440. Its totient is φ = 75208068.

The previous prime is 87742751. The next prime is 87742789. The reversal of 87742753 is 35724778.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87742753 - 2¹ = 87742751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87742751) 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 3 ways as a sum of consecutive naturals, for example, 6267333 + ... + 6267346.

It is an arithmetic number, because the mean of its divisors is an integer number (25069360).

Almost surely, 2^87742753 is an apocalyptic number.

It is an amenable number.

87742753 is a deficient number, since it is larger than the sum of its proper divisors (12534687).

87742753 is a wasteful number, since it uses less digits than its factorization.

87742753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12534686.

The product of its digits is 329280, while the sum is 43.

The square root of 87742753 is about 9367.1101733672. The cubic root of 87742753 is about 444.3621767568.

The spelling of 87742753 in words is "eighty-seven million, seven hundred forty-two thousand, seven hundred fifty-three".