87797933 has 4 divisors (see below), whose sum is σ = 89939388. Its totient is φ = 85656480.

The previous prime is 87797891. The next prime is 87797951. The reversal of 87797933 is 33979778.

It is a happy number.

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 49815364 + 37982569 = 7058^2 + 6163^2 .

It is a cyclic number.

It is not a de Polignac number, because 87797933 - 2⁶ = 87797869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87797033) 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, 1070666 + ... + 1070747.

It is an arithmetic number, because the mean of its divisors is an integer number (22484847).

Almost surely, 2^87797933 is an apocalyptic number.

It is an amenable number.

87797933 is a deficient number, since it is larger than the sum of its proper divisors (2141455).

87797933 is a wasteful number, since it uses less digits than its factorization.

87797933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141454.

The product of its digits is 2000376, while the sum is 53.

The square root of 87797933 is about 9370.0551225700. The cubic root of 87797933 is about 444.4553079683.

The spelling of 87797933 in words is "eighty-seven million, seven hundred ninety-seven thousand, nine hundred thirty-three".