87463138 has 12 divisors (see below), whose sum is σ = 152614422. Its totient is φ = 37484160.

The previous prime is 87463111. The next prime is 87463151. The reversal of 87463138 is 83136478.

It can be written as a sum of positive squares in only one way, i.e., 76685049 + 10778089 = 8757^2 + 3283^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 87463138.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 446143 + ... + 446338.

Almost surely, 2^87463138 is an apocalyptic number.

87463138 is a deficient number, since it is larger than the sum of its proper divisors (65151284).

87463138 is a wasteful number, since it uses less digits than its factorization.

87463138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892497 (or 892490 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 87463138 is about 9352.1729025933. The cubic root of 87463138 is about 443.8896494150.

The spelling of 87463138 in words is "eighty-seven million, four hundred sixty-three thousand, one hundred thirty-eight".