87082799 has 4 divisors (see below), whose sum is σ = 87363120. Its totient is φ = 86802480.

The previous prime is 87082771. The next prime is 87082819. The reversal of 87082799 is 99728078.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87082799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87082739) 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, 139694 + ... + 140315.

It is an arithmetic number, because the mean of its divisors is an integer number (21840780).

Almost surely, 2^87082799 is an apocalyptic number.

87082799 is a deficient number, since it is larger than the sum of its proper divisors (280321).

87082799 is a wasteful number, since it uses less digits than its factorization.

87082799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280320.

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 87082799 is about 9331.8164898373. The cubic root of 87082799 is about 443.2452870672.

It can be divided in two parts, 8 and 7082799, that added together give a palindrome (7082807).

The spelling of 87082799 in words is "eighty-seven million, eighty-two thousand, seven hundred ninety-nine".