86707919 has 2 divisors, whose sum is σ = 86707920. Its totient is φ = 86707918.

The previous prime is 86707913. The next prime is 86707927. The reversal of 86707919 is 91970768.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86707919 is a prime.

It is a super-2 number, since 2×86707919² = 15036526434621122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86707913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43353959 + 43353960.

It is an arithmetic number, because the mean of its divisors is an integer number (43353960).

Almost surely, 2^86707919 is an apocalyptic number.

86707919 is a deficient number, since it is larger than the sum of its proper divisors (1).

86707919 is an equidigital number, since it uses as much as digits as its factorization.

86707919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 47.

The square root of 86707919 is about 9311.7087046363. The cubic root of 86707919 is about 442.6083346312.

The spelling of 86707919 in words is "eighty-six million, seven hundred seven thousand, nine hundred nineteen".