87992837 has 2 divisors, whose sum is σ = 87992838. Its totient is φ = 87992836.

The previous prime is 87992791. The next prime is 87992897. The reversal of 87992837 is 73829978.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87590881 + 401956 = 9359^2 + 634^2 .

It is a cyclic number.

It is not a de Polignac number, because 87992837 - 2⁸ = 87992581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87992897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43996418 + 43996419.

It is an arithmetic number, because the mean of its divisors is an integer number (43996419).

Almost surely, 2^87992837 is an apocalyptic number.

It is an amenable number.

87992837 is a deficient number, since it is larger than the sum of its proper divisors (1).

87992837 is an equidigital number, since it uses as much as digits as its factorization.

87992837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 53.

The square root of 87992837 is about 9380.4497226945. The cubic root of 87992837 is about 444.7839493247.

The spelling of 87992837 in words is "eighty-seven million, nine hundred ninety-two thousand, eight hundred thirty-seven".