805465987 has 8 divisors (see below), whose sum is σ = 830189952. Its totient is φ = 780897600.

The previous prime is 805465979. The next prime is 805466023. The reversal of 805465987 is 789564508.

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 805465987 - 2³ = 805465979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805465937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28339 + ... + 49132.

It is an arithmetic number, because the mean of its divisors is an integer number (103773744).

Almost surely, 2^805465987 is an apocalyptic number.

805465987 is a deficient number, since it is larger than the sum of its proper divisors (24723965).

805465987 is a wasteful number, since it uses less digits than its factorization.

805465987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77789.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The square root of 805465987 is about 28380.7326720083. The cubic root of 805465987 is about 930.4272084354.

The spelling of 805465987 in words is "eight hundred five million, four hundred sixty-five thousand, nine hundred eighty-seven".