868758623 has 2 divisors, whose sum is σ = 868758624. Its totient is φ = 868758622.

The previous prime is 868758589. The next prime is 868758629. The reversal of 868758623 is 326857868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 868758623 - 2⁶ = 868758559 is a prime.

It is a super-2 number, since 2×868758623² = 1509483090073712258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868758629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434379311 + 434379312.

It is an arithmetic number, because the mean of its divisors is an integer number (434379312).

Almost surely, 2^868758623 is an apocalyptic number.

868758623 is a deficient number, since it is larger than the sum of its proper divisors (1).

868758623 is an equidigital number, since it uses as much as digits as its factorization.

868758623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 53.

The square root of 868758623 is about 29474.7115846788. The cubic root of 868758623 is about 954.1860055839.

The spelling of 868758623 in words is "eight hundred sixty-eight million, seven hundred fifty-eight thousand, six hundred twenty-three".