863693 has 2 divisors, whose sum is σ = 863694. Its totient is φ = 863692.

The previous prime is 863689. The next prime is 863711. The reversal of 863693 is 396368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 635209 + 228484 = 797^2 + 478^2 .

It is a cyclic number.

It is not a de Polignac number, because 863693 - 2² = 863689 is a prime.

It is a plaindrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431846 + 431847.

It is an arithmetic number, because the mean of its divisors is an integer number (431847).

2⁸⁶³⁶⁹³ is an apocalyptic number.

It is an amenable number.

863693 is a deficient number, since it is larger than the sum of its proper divisors (1).

863693 is an equidigital number, since it uses as much as digits as its factorization.

863693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The square root of 863693 is about 929.3508487111. The cubic root of 863693 is about 95.2327809455.

The spelling of 863693 in words is "eight hundred sixty-three thousand, six hundred ninety-three".