87000037 has 2 divisors, whose sum is σ = 87000038. Its totient is φ = 87000036.

The previous prime is 86999989. The next prime is 87000047. The reversal of 87000037 is 73000078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57775201 + 29224836 = 7601^2 + 5406^2 .

It is a cyclic number.

It is not a de Polignac number, because 87000037 - 2¹⁵ = 86967269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86999975 and 87000020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87000047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43500018 + 43500019.

It is an arithmetic number, because the mean of its divisors is an integer number (43500019).

Almost surely, 2^87000037 is an apocalyptic number.

It is an amenable number.

87000037 is a deficient number, since it is larger than the sum of its proper divisors (1).

87000037 is an equidigital number, since it uses as much as digits as its factorization.

87000037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 87000037 is about 9327.3810364968. The cubic root of 87000037 is about 443.1048249850.

The spelling of 87000037 in words is "eighty-seven million, thirty-seven", and thus it is an aban number and an uban number.