86726987 has 2 divisors, whose sum is σ = 86726988. Its totient is φ = 86726986.

The previous prime is 86726971. The next prime is 86726999. The reversal of 86726987 is 78962768.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86726987 - 2⁴ = 86726971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86726587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43363493 + 43363494.

It is an arithmetic number, because the mean of its divisors is an integer number (43363494).

Almost surely, 2^86726987 is an apocalyptic number.

86726987 is a deficient number, since it is larger than the sum of its proper divisors (1).

86726987 is an equidigital number, since it uses as much as digits as its factorization.

86726987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 53.

The square root of 86726987 is about 9312.7325205871. The cubic root of 86726987 is about 442.6407770242.

The spelling of 86726987 in words is "eighty-six million, seven hundred twenty-six thousand, nine hundred eighty-seven".