86704837 has 2 divisors, whose sum is σ = 86704838. Its totient is φ = 86704836.

The previous prime is 86704831. The next prime is 86704841. The reversal of 86704837 is 73840768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82700836 + 4004001 = 9094^2 + 2001^2 .

It is a cyclic number.

It is not a de Polignac number, because 86704837 - 2³ = 86704829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86704793 and 86704802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86704831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43352418 + 43352419.

It is an arithmetic number, because the mean of its divisors is an integer number (43352419).

Almost surely, 2^86704837 is an apocalyptic number.

It is an amenable number.

86704837 is a deficient number, since it is larger than the sum of its proper divisors (1).

86704837 is an equidigital number, since it uses as much as digits as its factorization.

86704837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 86704837 is about 9311.5432125937. The cubic root of 86704837 is about 442.6030904541.

The spelling of 86704837 in words is "eighty-six million, seven hundred four thousand, eight hundred thirty-seven".