86754991 has 2 divisors, whose sum is σ = 86754992. Its totient is φ = 86754990.

The previous prime is 86754977. The next prime is 86755001. The reversal of 86754991 is 19945768.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86754991 - 2¹¹ = 86752943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86754901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43377495 + 43377496.

It is an arithmetic number, because the mean of its divisors is an integer number (43377496).

Almost surely, 2^86754991 is an apocalyptic number.

86754991 is a deficient number, since it is larger than the sum of its proper divisors (1).

86754991 is an equidigital number, since it uses as much as digits as its factorization.

86754991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 86754991 is about 9314.2359321632. The cubic root of 86754991 is about 442.6884145544.

The spelling of 86754991 in words is "eighty-six million, seven hundred fifty-four thousand, nine hundred ninety-one".