8630478487 has 4 divisors (see below), whose sum is σ = 8630668120. Its totient is φ = 8630288856.

The previous prime is 8630478463. The next prime is 8630478511. The reversal of 8630478487 is 7848740368.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (8630478463) and next prime (8630478511).

It is a 3-Lehmer number, since φ(8630478487) divides (8630478487-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8630478487 is a prime.

It is a deceptive number, since it divides R_8630478486.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8630478427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18964 + ... + 132742.

It is an arithmetic number, because the mean of its divisors is an integer number (2157667030).

Almost surely, 2^8630478487 is an apocalyptic number.

8630478487 is the 75853-rd pentagonal number.

8630478487 is a deficient number, since it is larger than the sum of its proper divisors (189633).

8630478487 is a wasteful number, since it uses less digits than its factorization.

8630478487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189632.

The product of its (nonzero) digits is 7225344, while the sum is 55.

The square root of 8630478487 is about 92900.3686052967. The cubic root of 8630478487 is about 2051.2170831057.

The spelling of 8630478487 in words is "eight billion, six hundred thirty million, four hundred seventy-eight thousand, four hundred eighty-seven".