86380549 has 2 divisors, whose sum is σ = 86380550. Its totient is φ = 86380548.

The previous prime is 86380529. The next prime is 86380573. The reversal of 86380549 is 94508368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52099524 + 34281025 = 7218^2 + 5855^2 .

It is a cyclic number.

It is not a de Polignac number, because 86380549 - 2¹⁷ = 86249477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86380529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43190274 + 43190275.

It is an arithmetic number, because the mean of its divisors is an integer number (43190275).

Almost surely, 2^86380549 is an apocalyptic number.

It is an amenable number.

86380549 is a deficient number, since it is larger than the sum of its proper divisors (1).

86380549 is an equidigital number, since it uses as much as digits as its factorization.

86380549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 86380549 is about 9294.1136747944. The cubic root of 86380549 is about 442.0506023022.

The spelling of 86380549 in words is "eighty-six million, three hundred eighty thousand, five hundred forty-nine".