86625899 has 2 divisors, whose sum is σ = 86625900. Its totient is φ = 86625898.

The previous prime is 86625881. The next prime is 86625919. The reversal of 86625899 is 99852668.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86625899 - 2¹² = 86621803 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 86625899.

It is not a weakly prime, because it can be changed into another prime (86625499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43312949 + 43312950.

It is an arithmetic number, because the mean of its divisors is an integer number (43312950).

Almost surely, 2^86625899 is an apocalyptic number.

86625899 is a deficient number, since it is larger than the sum of its proper divisors (1).

86625899 is an equidigital number, since it uses as much as digits as its factorization.

86625899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 53.

The square root of 86625899 is about 9307.3035300241. The cubic root of 86625899 is about 442.4687311259.

The spelling of 86625899 in words is "eighty-six million, six hundred twenty-five thousand, eight hundred ninety-nine".