87944753 has 4 divisors (see below), whose sum is σ = 94709748. Its totient is φ = 81179760.

The previous prime is 87944743. The next prime is 87944767. The reversal of 87944753 is 35744978.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35744978 = 2 ⋅17872489.

It can be written as a sum of positive squares in 2 ways, for example, as 46895104 + 41049649 = 6848^2 + 6407^2 .

It is a cyclic number.

It is not a de Polignac number, because 87944753 - 2⁸ = 87944497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87944698 and 87944707.

It is not an unprimeable number, because it can be changed into a prime (87944743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3382478 + ... + 3382503.

It is an arithmetic number, because the mean of its divisors is an integer number (23677437).

Almost surely, 2^87944753 is an apocalyptic number.

It is an amenable number.

87944753 is a deficient number, since it is larger than the sum of its proper divisors (6764995).

87944753 is a wasteful number, since it uses less digits than its factorization.

87944753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764994.

The product of its digits is 846720, while the sum is 47.

The square root of 87944753 is about 9377.8863823358. The cubic root of 87944753 is about 444.7029166369.

The spelling of 87944753 in words is "eighty-seven million, nine hundred forty-four thousand, seven hundred fifty-three".