86999357 has 2 divisors, whose sum is σ = 86999358. Its totient is φ = 86999356.

The previous prime is 86999351. The next prime is 86999377. The reversal of 86999357 is 75399968.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62188996 + 24810361 = 7886^2 + 4981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86999357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86999351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43499678 + 43499679.

It is an arithmetic number, because the mean of its divisors is an integer number (43499679).

Almost surely, 2^86999357 is an apocalyptic number.

It is an amenable number.

86999357 is a deficient number, since it is larger than the sum of its proper divisors (1).

86999357 is an equidigital number, since it uses as much as digits as its factorization.

86999357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3674160, while the sum is 56.

The square root of 86999357 is about 9327.3445846071. The cubic root of 86999357 is about 443.1036705331.

The spelling of 86999357 in words is "eighty-six million, nine hundred ninety-nine thousand, three hundred fifty-seven".