86662493 has 2 divisors, whose sum is σ = 86662494. Its totient is φ = 86662492.

The previous prime is 86662487. The next prime is 86662573. The reversal of 86662493 is 39426668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85618009 + 1044484 = 9253^2 + 1022^2 .

It is a cyclic number.

It is not a de Polignac number, because 86662493 - 2¹⁶ = 86596957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86662393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43331246 + 43331247.

It is an arithmetic number, because the mean of its divisors is an integer number (43331247).

Almost surely, 2^86662493 is an apocalyptic number.

It is an amenable number.

86662493 is a deficient number, since it is larger than the sum of its proper divisors (1).

86662493 is an equidigital number, since it uses as much as digits as its factorization.

86662493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The square root of 86662493 is about 9309.2691979553. The cubic root of 86662493 is about 442.5310274348.

The spelling of 86662493 in words is "eighty-six million, six hundred sixty-two thousand, four hundred ninety-three".