87931741 has 8 divisors (see below), whose sum is σ = 91772280. Its totient is φ = 84145152.

The previous prime is 87931703. The next prime is 87931747. The reversal of 87931741 is 14713978.

It can be written as a sum of positive squares in 4 ways, for example, as 2295225 + 85636516 = 1515^2 + 9254^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87931741 - 2¹¹ = 87929693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87931694 and 87931703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87931747) 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, 10140 + ... + 16693.

It is an arithmetic number, because the mean of its divisors is an integer number (11471535).

Almost surely, 2^87931741 is an apocalyptic number.

It is an amenable number.

87931741 is a deficient number, since it is larger than the sum of its proper divisors (3840539).

87931741 is a wasteful number, since it uses less digits than its factorization.

87931741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26975.

The product of its digits is 42336, while the sum is 40.

The square root of 87931741 is about 9377.1925969343. The cubic root of 87931741 is about 444.6809833225.

The spelling of 87931741 in words is "eighty-seven million, nine hundred thirty-one thousand, seven hundred forty-one".