86697901 has 2 divisors, whose sum is σ = 86697902. Its totient is φ = 86697900.

The previous prime is 86697889. The next prime is 86697911. The reversal of 86697901 is 10979668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81180100 + 5517801 = 9010^2 + 2349^2 .

It is a cyclic number.

It is not a de Polignac number, because 86697901 - 2⁵ = 86697869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86697911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43348950 + 43348951.

It is an arithmetic number, because the mean of its divisors is an integer number (43348951).

Almost surely, 2^86697901 is an apocalyptic number.

It is an amenable number.

86697901 is a deficient number, since it is larger than the sum of its proper divisors (1).

86697901 is an equidigital number, since it uses as much as digits as its factorization.

86697901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 86697901 is about 9311.1707641950. The cubic root of 86697901 is about 442.5912880488.

The spelling of 86697901 in words is "eighty-six million, six hundred ninety-seven thousand, nine hundred one".