863925697 has 2 divisors, whose sum is σ = 863925698. Its totient is φ = 863925696.

The previous prime is 863925683. The next prime is 863925709. The reversal of 863925697 is 796529368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 806787216 + 57138481 = 28404^2 + 7559^2 .

It is a cyclic number.

It is not a de Polignac number, because 863925697 - 2¹¹ = 863923649 is a prime.

It is not a weakly prime, because it can be changed into another prime (863925677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431962848 + 431962849.

It is an arithmetic number, because the mean of its divisors is an integer number (431962849).

Almost surely, 2^863925697 is an apocalyptic number.

It is an amenable number.

863925697 is a deficient number, since it is larger than the sum of its proper divisors (1).

863925697 is an equidigital number, since it uses as much as digits as its factorization.

863925697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 55.

The square root of 863925697 is about 29392.6129665261. The cubic root of 863925697 is about 952.4133274676.

The spelling of 863925697 in words is "eight hundred sixty-three million, nine hundred twenty-five thousand, six hundred ninety-seven".