86709253 has 2 divisors, whose sum is σ = 86709254. Its totient is φ = 86709252.

The previous prime is 86709223. The next prime is 86709257. The reversal of 86709253 is 35290768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72216004 + 14493249 = 8498^2 + 3807^2 .

It is a cyclic number.

It is not a de Polignac number, because 86709253 - 2⁵ = 86709221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86709257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43354626 + 43354627.

It is an arithmetic number, because the mean of its divisors is an integer number (43354627).

Almost surely, 2^86709253 is an apocalyptic number.

It is an amenable number.

86709253 is a deficient number, since it is larger than the sum of its proper divisors (1).

86709253 is an equidigital number, since it uses as much as digits as its factorization.

86709253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 86709253 is about 9311.7803346084. The cubic root of 86709253 is about 442.6106044604.

The spelling of 86709253 in words is "eighty-six million, seven hundred nine thousand, two hundred fifty-three".