87488615 has 4 divisors (see below), whose sum is σ = 104986344. Its totient is φ = 69990888.

The previous prime is 87488593. The next prime is 87488641. The reversal of 87488615 is 51688478.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87488615 - 2⁶ = 87488551 is a prime.

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 87488615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8748857 + ... + 8748866.

It is an arithmetic number, because the mean of its divisors is an integer number (26246586).

Almost surely, 2^87488615 is an apocalyptic number.

87488615 is a deficient number, since it is larger than the sum of its proper divisors (17497729).

87488615 is a wasteful number, since it uses less digits than its factorization.

87488615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17497728.

The product of its digits is 430080, while the sum is 47.

The square root of 87488615 is about 9353.5348932903. The cubic root of 87488615 is about 443.9327452036.

The spelling of 87488615 in words is "eighty-seven million, four hundred eighty-eight thousand, six hundred fifteen".