87206463 has 20 divisors (see below), whose sum is σ = 132223960. Its totient is φ = 57266352.

The previous prime is 87206443. The next prime is 87206477. The reversal of 87206463 is 36460278.

87206463 is a `hidden beast` number, since 8 + 7 + 2 + 0 + 646 + 3 = 666.

It is not a de Polignac number, because 87206463 - 2²⁶ = 20097599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87206423) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2608 + ... + 13461.

It is an arithmetic number, because the mean of its divisors is an integer number (6611198).

Almost surely, 2^87206463 is an apocalyptic number.

87206463 is a deficient number, since it is larger than the sum of its proper divisors (45017497).

87206463 is a wasteful number, since it uses less digits than its factorization.

87206463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16148 (or 16139 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 87206463 is about 9338.4400731600. The cubic root of 87206463 is about 443.4550014994.

The spelling of 87206463 in words is "eighty-seven million, two hundred six thousand, four hundred sixty-three".