87715441 has 12 divisors (see below), whose sum is σ = 98771652. Its totient is φ = 77792000.

The previous prime is 87715421. The next prime is 87715469. The reversal of 87715441 is 14451778.

It can be written as a sum of positive squares in 2 ways, for example, as 12390400 + 75325041 = 3520^2 + 8679^2 .

It is not a de Polignac number, because 87715441 - 2¹⁷ = 87584369 is a prime.

It is a super-3 number, since 3×87715441³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87715441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87715421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3880 + ... + 13801.

It is an arithmetic number, because the mean of its divisors is an integer number (8230971).

Almost surely, 2^87715441 is an apocalyptic number.

It is an amenable number.

87715441 is a deficient number, since it is larger than the sum of its proper divisors (11056211).

87715441 is a wasteful number, since it uses less digits than its factorization.

87715441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17744 (or 17733 counting only the distinct ones).

The product of its digits is 31360, while the sum is 37.

The square root of 87715441 is about 9365.6521929869. The cubic root of 87715441 is about 444.3160659050.

The spelling of 87715441 in words is "eighty-seven million, seven hundred fifteen thousand, four hundred forty-one".