87105833 has 4 divisors (see below), whose sum is σ = 87741780. Its totient is φ = 86469888.

The previous prime is 87105797. The next prime is 87105883. The reversal of 87105833 is 33850178.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48330304 + 38775529 = 6952^2 + 6227^2 .

It is a cyclic number.

It is not a de Polignac number, because 87105833 - 2¹⁶ = 87040297 is a prime.

It is a super-2 number, since 2×87105833² = 15174852285247778, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87105793 and 87105802.

It is not an unprimeable number, because it can be changed into a prime (87105883) 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, 317768 + ... + 318041.

It is an arithmetic number, because the mean of its divisors is an integer number (21935445).

Almost surely, 2^87105833 is an apocalyptic number.

It is an amenable number.

87105833 is a deficient number, since it is larger than the sum of its proper divisors (635947).

87105833 is a wasteful number, since it uses less digits than its factorization.

87105833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635946.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 87105833 is about 9333.0505730977. The cubic root of 87105833 is about 443.2843640989.

The spelling of 87105833 in words is "eighty-seven million, one hundred five thousand, eight hundred thirty-three".