86370289 has 2 divisors, whose sum is σ = 86370290. Its totient is φ = 86370288.

The previous prime is 86370283. The next prime is 86370301. The reversal of 86370289 is 98207368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85008400 + 1361889 = 9220^2 + 1167^2 .

It is a cyclic number.

It is not a de Polignac number, because 86370289 - 2³ = 86370281 is a prime.

It is not a weakly prime, because it can be changed into another prime (86370281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43185144 + 43185145.

It is an arithmetic number, because the mean of its divisors is an integer number (43185145).

Almost surely, 2^86370289 is an apocalyptic number.

It is an amenable number.

86370289 is a deficient number, since it is larger than the sum of its proper divisors (1).

86370289 is an equidigital number, since it uses as much as digits as its factorization.

86370289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 86370289 is about 9293.5616961421. The cubic root of 86370289 is about 442.0330998328.

The spelling of 86370289 in words is "eighty-six million, three hundred seventy thousand, two hundred eighty-nine".