87572833 has 4 divisors (see below), whose sum is σ = 87591600. Its totient is φ = 87554068.

The previous prime is 87572809. The next prime is 87572839. The reversal of 87572833 is 33827578.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87572833 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 87572833.

It is not an unprimeable number, because it can be changed into a prime (87572839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666 + ... + 13732.

It is an arithmetic number, because the mean of its divisors is an integer number (21897900).

Almost surely, 2^87572833 is an apocalyptic number.

It is an amenable number.

87572833 is a deficient number, since it is larger than the sum of its proper divisors (18767).

87572833 is a wasteful number, since it uses less digits than its factorization.

87572833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18766.

The product of its digits is 282240, while the sum is 43.

The square root of 87572833 is about 9358.0357447490. The cubic root of 87572833 is about 444.0751452095.

The spelling of 87572833 in words is "eighty-seven million, five hundred seventy-two thousand, eight hundred thirty-three".