86438371 has 2 divisors, whose sum is σ = 86438372. Its totient is φ = 86438370.

The previous prime is 86438293. The next prime is 86438377. The reversal of 86438371 is 17383468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86438371 - 2¹⁹ = 85914083 is a prime.

It is a super-2 number, since 2×86438371² = 14943183962267282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86438377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43219185 + 43219186.

It is an arithmetic number, because the mean of its divisors is an integer number (43219186).

Almost surely, 2^86438371 is an apocalyptic number.

86438371 is a deficient number, since it is larger than the sum of its proper divisors (1).

86438371 is an equidigital number, since it uses as much as digits as its factorization.

86438371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 86438371 is about 9297.2238329514. The cubic root of 86438371 is about 442.1492145829.

The spelling of 86438371 in words is "eighty-six million, four hundred thirty-eight thousand, three hundred seventy-one".