87365505 has 16 divisors (see below), whose sum is σ = 141171264. Its totient is φ = 46132800.

The previous prime is 87365483. The next prime is 87365507. The reversal of 87365505 is 50556378.

It is not a de Polignac number, because 87365505 - 2⁶ = 87365441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87365507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27319 + ... + 30348.

It is an arithmetic number, because the mean of its divisors is an integer number (8823204).

Almost surely, 2^87365505 is an apocalyptic number.

It is an amenable number.

87365505 is a deficient number, since it is larger than the sum of its proper divisors (53805759).

87365505 is a wasteful number, since it uses less digits than its factorization.

87365505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57776.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 87365505 is about 9346.9516421131. The cubic root of 87365505 is about 443.7244201350.

It can be divided in two parts, 8736 and 5505, that added together give a palindrome (14241).

The spelling of 87365505 in words is "eighty-seven million, three hundred sixty-five thousand, five hundred five".