87523607 has 4 divisors (see below), whose sum is σ = 87754920. Its totient is φ = 87292296.

The previous prime is 87523603. The next prime is 87523613. The reversal of 87523607 is 70632578.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70632578 = 2 ⋅35316289.

It is a cyclic number.

It is not a de Polignac number, because 87523607 - 2² = 87523603 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 (87523603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115088 + ... + 115845.

It is an arithmetic number, because the mean of its divisors is an integer number (21938730).

Almost surely, 2^87523607 is an apocalyptic number.

87523607 is a deficient number, since it is larger than the sum of its proper divisors (231313).

87523607 is a wasteful number, since it uses less digits than its factorization.

87523607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231312.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 87523607 is about 9355.4052290641. The cubic root of 87523607 is about 443.9919225190.

The spelling of 87523607 in words is "eighty-seven million, five hundred twenty-three thousand, six hundred seven".