86380397 has 2 divisors, whose sum is σ = 86380398. Its totient is φ = 86380396.

The previous prime is 86380381. The next prime is 86380471. The reversal of 86380397 is 79308368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86007076 + 373321 = 9274^2 + 611^2 .

It is a cyclic number.

It is not a de Polignac number, because 86380397 - 2⁴ = 86380381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86380337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43190198 + 43190199.

It is an arithmetic number, because the mean of its divisors is an integer number (43190199).

Almost surely, 2^86380397 is an apocalyptic number.

It is an amenable number.

86380397 is a deficient number, since it is larger than the sum of its proper divisors (1).

86380397 is an equidigital number, since it uses as much as digits as its factorization.

86380397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 86380397 is about 9294.1054975721. The cubic root of 86380397 is about 442.0503430165.

The spelling of 86380397 in words is "eighty-six million, three hundred eighty thousand, three hundred ninety-seven".