87521486 has 32 divisors (see below), whose sum is σ = 155312640. Its totient is φ = 36599904.

The previous prime is 87521477. The next prime is 87521531. The reversal of 87521486 is 68412578.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7511 + ... + 15213.

It is an arithmetic number, because the mean of its divisors is an integer number (4853520).

Almost surely, 2^87521486 is an apocalyptic number.

87521486 is a deficient number, since it is larger than the sum of its proper divisors (67791154).

87521486 is a wasteful number, since it uses less digits than its factorization.

87521486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7760.

The product of its digits is 107520, while the sum is 41.

The square root of 87521486 is about 9355.2918714490. The cubic root of 87521486 is about 443.9883360029.

The spelling of 87521486 in words is "eighty-seven million, five hundred twenty-one thousand, four hundred eighty-six".