87673569 has 8 divisors (see below), whose sum is σ = 118544832. Its totient is φ = 57625680.

The previous prime is 87673559. The next prime is 87673577. The reversal of 87673569 is 96537678.

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

It is a de Polignac number, because none of the positive numbers 2^k-87673569 is a prime.

It is a super-2 number, since 2×87673569² = 15373309402395522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87673559) 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, 205594 + ... + 206019.

It is an arithmetic number, because the mean of its divisors is an integer number (14818104).

Almost surely, 2^87673569 is an apocalyptic number.

It is an amenable number.

87673569 is a deficient number, since it is larger than the sum of its proper divisors (30871263).

87673569 is a wasteful number, since it uses less digits than its factorization.

87673569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411687.

The product of its digits is 1905120, while the sum is 51.

The square root of 87673569 is about 9363.4165238977. The cubic root of 87673569 is about 444.2453548146.

The spelling of 87673569 in words is "eighty-seven million, six hundred seventy-three thousand, five hundred sixty-nine".