873667505 has 8 divisors (see below), whose sum is σ = 1050416424. Its totient is φ = 697590400.

The previous prime is 873667499. The next prime is 873667517. The reversal of 873667505 is 505766378.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 27962944 + 845704561 = 5288^2 + 29081^2 .

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

It is not a de Polignac number, because 873667505 - 2⁶ = 873667441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 873667505.

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, 165086 + ... + 170295.

It is an arithmetic number, because the mean of its divisors is an integer number (131302053).

Almost surely, 2^873667505 is an apocalyptic number.

It is an amenable number.

873667505 is a deficient number, since it is larger than the sum of its proper divisors (176748919).

873667505 is a wasteful number, since it uses less digits than its factorization.

873667505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335907.

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 873667505 is about 29557.8670576887. The cubic root of 873667505 is about 955.9798263893.

The spelling of 873667505 in words is "eight hundred seventy-three million, six hundred sixty-seven thousand, five hundred five".