87107501 has 6 divisors (see below), whose sum is σ = 94323690. Its totient is φ = 80406768.

The previous prime is 87107407. The next prime is 87107513. The reversal of 87107501 is 10570178.

It can be written as a sum of positive squares in 3 ways, for example, as 133225 + 86974276 = 365^2 + 9326^2 .

It is not a de Polignac number, because 87107501 - 2¹⁰ = 87106477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87107101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 257546 + ... + 257883.

It is an arithmetic number, because the mean of its divisors is an integer number (15720615).

Almost surely, 2^87107501 is an apocalyptic number.

It is an amenable number.

87107501 is a deficient number, since it is larger than the sum of its proper divisors (7216189).

87107501 is a wasteful number, since it uses less digits than its factorization.

87107501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515455 (or 515442 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 87107501 is about 9333.1399325200. The cubic root of 87107501 is about 443.2871935826.

Adding to 87107501 its reverse (10570178), we get a palindrome (97677679).

The spelling of 87107501 in words is "eighty-seven million, one hundred seven thousand, five hundred one".