87630805 has 8 divisors (see below), whose sum is σ = 109729152. Its totient is φ = 67056528.

The previous prime is 87630791. The next prime is 87630839. The reversal of 87630805 is 50803678.

87630805 = T₅₉₁₈ + T₅₉₁₉ + ... + T₅₉₂₂.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87630805 - 2⁵ = 87630773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380889 + ... + 381118.

It is an arithmetic number, because the mean of its divisors is an integer number (13716144).

Almost surely, 2^87630805 is an apocalyptic number.

It is an amenable number.

87630805 is a deficient number, since it is larger than the sum of its proper divisors (22098347).

87630805 is a wasteful number, since it uses less digits than its factorization.

87630805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762035.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 87630805 is about 9361.1326771924. The cubic root of 87630805 is about 444.1731141222.

The spelling of 87630805 in words is "eighty-seven million, six hundred thirty thousand, eight hundred five".