86955641 has 2 divisors, whose sum is σ = 86955642. Its totient is φ = 86955640.

The previous prime is 86955619. The next prime is 86955643. The reversal of 86955641 is 14655968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86955625 + 16 = 9325^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 86955641 - 2¹⁰ = 86954617 is a prime.

It is a super-2 number, since 2×86955641² = 15122567003441762, which contains 22 as substring.

Together with 86955643, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 86955592 and 86955601.

It is not a weakly prime, because it can be changed into another prime (86955643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43477820 + 43477821.

It is an arithmetic number, because the mean of its divisors is an integer number (43477821).

Almost surely, 2^86955641 is an apocalyptic number.

It is an amenable number.

86955641 is a deficient number, since it is larger than the sum of its proper divisors (1).

86955641 is an equidigital number, since it uses as much as digits as its factorization.

86955641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 44.

The square root of 86955641 is about 9325.0008579088. Note that the first 3 decimals coincide. The cubic root of 86955641 is about 443.0294402317.

The spelling of 86955641 in words is "eighty-six million, nine hundred fifty-five thousand, six hundred forty-one".