86541397 has 2 divisors, whose sum is σ = 86541398. Its totient is φ = 86541396.

The previous prime is 86541391. The next prime is 86541401. The reversal of 86541397 is 79314568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85266756 + 1274641 = 9234^2 + 1129^2 .

It is a cyclic number.

It is not a de Polignac number, because 86541397 - 2¹⁵ = 86508629 is a prime.

It is a super-3 number, since 3×86541397³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86541391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43270698 + 43270699.

It is an arithmetic number, because the mean of its divisors is an integer number (43270699).

Almost surely, 2^86541397 is an apocalyptic number.

It is an amenable number.

86541397 is a deficient number, since it is larger than the sum of its proper divisors (1).

86541397 is an equidigital number, since it uses as much as digits as its factorization.

86541397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 86541397 is about 9302.7628691696. The cubic root of 86541397 is about 442.3248108999.

The spelling of 86541397 in words is "eighty-six million, five hundred forty-one thousand, three hundred ninety-seven".