86864357 has 2 divisors, whose sum is σ = 86864358. Its totient is φ = 86864356.

The previous prime is 86864321. The next prime is 86864369. The reversal of 86864357 is 75346868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81252196 + 5612161 = 9014^2 + 2369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86864357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86864377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43432178 + 43432179.

It is an arithmetic number, because the mean of its divisors is an integer number (43432179).

Almost surely, 2^86864357 is an apocalyptic number.

It is an amenable number.

86864357 is a deficient number, since it is larger than the sum of its proper divisors (1).

86864357 is an equidigital number, since it uses as much as digits as its factorization.

86864357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 47.

The square root of 86864357 is about 9320.1049886790. The cubic root of 86864357 is about 442.8743586340.

The spelling of 86864357 in words is "eighty-six million, eight hundred sixty-four thousand, three hundred fifty-seven".