87465905 has 8 divisors (see below), whose sum is σ = 105133992. Its totient is φ = 69856128.

The previous prime is 87465883. The next prime is 87465923. The reversal of 87465905 is 50956478.

It can be written as a sum of positive squares in 4 ways, for example, as 5527201 + 81938704 = 2351^2 + 9052^2 .

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 87465905 - 2¹⁴ = 87449521 is a prime.

It is a Duffinian 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, 11204 + ... + 17333.

It is an arithmetic number, because the mean of its divisors is an integer number (13141749).

Almost surely, 2^87465905 is an apocalyptic number.

It is an amenable number.

87465905 is a deficient number, since it is larger than the sum of its proper divisors (17668087).

87465905 is a wasteful number, since it uses less digits than its factorization.

87465905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29155.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 87465905 is about 9352.3208349586. The cubic root of 87465905 is about 443.8943303573.

The spelling of 87465905 in words is "eighty-seven million, four hundred sixty-five thousand, nine hundred five".