86612249 has 2 divisors, whose sum is σ = 86612250. Its totient is φ = 86612248.

The previous prime is 86612221. The next prime is 86612269. The reversal of 86612249 is 94221668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73960000 + 12652249 = 8600^2 + 3557^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86612249 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86612209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43306124 + 43306125.

It is an arithmetic number, because the mean of its divisors is an integer number (43306125).

Almost surely, 2^86612249 is an apocalyptic number.

It is an amenable number.

86612249 is a deficient number, since it is larger than the sum of its proper divisors (1).

86612249 is an equidigital number, since it uses as much as digits as its factorization.

86612249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 86612249 is about 9306.5702060426. The cubic root of 86612249 is about 442.4454893645.

The spelling of 86612249 in words is "eighty-six million, six hundred twelve thousand, two hundred forty-nine".