87663502 has 4 divisors (see below), whose sum is σ = 131495256. Its totient is φ = 43831750.

The previous prime is 87663493. The next prime is 87663523. The reversal of 87663502 is 20536678.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20536678 = 2 ⋅10268339.

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, 21915874 + ... + 21915877.

It is an arithmetic number, because the mean of its divisors is an integer number (32873814).

Almost surely, 2^87663502 is an apocalyptic number.

87663502 is a deficient number, since it is larger than the sum of its proper divisors (43831754).

87663502 is a wasteful number, since it uses less digits than its factorization.

87663502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43831753.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 87663502 is about 9362.8789375918. The cubic root of 87663502 is about 444.2283508714.

The spelling of 87663502 in words is "eighty-seven million, six hundred sixty-three thousand, five hundred two".