87563516 has 6 divisors (see below), whose sum is σ = 153236160. Its totient is φ = 43781756.

The previous prime is 87563501. The next prime is 87563527. The reversal of 87563516 is 61536578.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10945436 + ... + 10945443.

It is an arithmetic number, because the mean of its divisors is an integer number (25539360).

Almost surely, 2^87563516 is an apocalyptic number.

It is an amenable number.

87563516 is a deficient number, since it is larger than the sum of its proper divisors (65672644).

87563516 is a wasteful number, since it uses less digits than its factorization.

87563516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21890883 (or 21890881 counting only the distinct ones).

The product of its digits is 151200, while the sum is 41.

The square root of 87563516 is about 9357.5379240482. The cubic root of 87563516 is about 444.0593960525.

The spelling of 87563516 in words is "eighty-seven million, five hundred sixty-three thousand, five hundred sixteen".