86985061 has 2 divisors, whose sum is σ = 86985062. Its totient is φ = 86985060.

The previous prime is 86985053. The next prime is 86985127. The reversal of 86985061 is 16058968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46662561 + 40322500 = 6831^2 + 6350^2 .

It is a cyclic number.

It is not a de Polignac number, because 86985061 - 2³ = 86985053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86984999 and 86985017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86985361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43492530 + 43492531.

It is an arithmetic number, because the mean of its divisors is an integer number (43492531).

Almost surely, 2^86985061 is an apocalyptic number.

It is an amenable number.

86985061 is a deficient number, since it is larger than the sum of its proper divisors (1).

86985061 is an equidigital number, since it uses as much as digits as its factorization.

86985061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 86985061 is about 9326.5782042505. The cubic root of 86985061 is about 443.0793984875.

The spelling of 86985061 in words is "eighty-six million, nine hundred eighty-five thousand, sixty-one".