86639041 has 2 divisors, whose sum is σ = 86639042. Its totient is φ = 86639040.

The previous prime is 86639029. The next prime is 86639053. The reversal of 86639041 is 14093668.

It is a balanced prime because it is at equal distance from previous prime (86639029) and next prime (86639053).

It can be written as a sum of positive squares in only one way, i.e., 71893441 + 14745600 = 8479^2 + 3840^2 .

It is a cyclic number.

It is not a de Polignac number, because 86639041 - 2⁵ = 86639009 is a prime.

It is not a weakly prime, because it can be changed into another prime (86639071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43319520 + 43319521.

It is an arithmetic number, because the mean of its divisors is an integer number (43319521).

Almost surely, 2^86639041 is an apocalyptic number.

It is an amenable number.

86639041 is a deficient number, since it is larger than the sum of its proper divisors (1).

86639041 is an equidigital number, since it uses as much as digits as its factorization.

86639041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 86639041 is about 9308.0095079453. The cubic root of 86639041 is about 442.4911056124.

The spelling of 86639041 in words is "eighty-six million, six hundred thirty-nine thousand, forty-one".