86500949 has 2 divisors, whose sum is σ = 86500950. Its totient is φ = 86500948.

The previous prime is 86500919. The next prime is 86500957. The reversal of 86500949 is 94900568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79834225 + 6666724 = 8935^2 + 2582^2 .

It is a cyclic number.

It is not a de Polignac number, because 86500949 - 2¹² = 86496853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86500919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43250474 + 43250475.

It is an arithmetic number, because the mean of its divisors is an integer number (43250475).

Almost surely, 2^86500949 is an apocalyptic number.

It is an amenable number.

86500949 is a deficient number, since it is larger than the sum of its proper divisors (1).

86500949 is an equidigital number, since it uses as much as digits as its factorization.

86500949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 86500949 is about 9300.5886372853. The cubic root of 86500949 is about 442.2558884241.

The spelling of 86500949 in words is "eighty-six million, five hundred thousand, nine hundred forty-nine".