86877851 has 2 divisors, whose sum is σ = 86877852. Its totient is φ = 86877850.

The previous prime is 86877827. The next prime is 86877883. The reversal of 86877851 is 15877868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86877851 - 2⁶ = 86877787 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86877851.

It is not a weakly prime, because it can be changed into another prime (86877821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43438925 + 43438926.

It is an arithmetic number, because the mean of its divisors is an integer number (43438926).

Almost surely, 2^86877851 is an apocalyptic number.

86877851 is a deficient number, since it is larger than the sum of its proper divisors (1).

86877851 is an equidigital number, since it uses as much as digits as its factorization.

86877851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 752640, while the sum is 50.

The square root of 86877851 is about 9320.8288794506. The cubic root of 86877851 is about 442.8972903150.

The spelling of 86877851 in words is "eighty-six million, eight hundred seventy-seven thousand, eight hundred fifty-one".