689292853 has 2 divisors, whose sum is σ = 689292854. Its totient is φ = 689292852.

The previous prime is 689292847. The next prime is 689292883. The reversal of 689292853 is 358292986.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 578979844 + 110313009 = 24062^2 + 10503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-689292853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 689292853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (689292883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344646426 + 344646427.

It is an arithmetic number, because the mean of its divisors is an integer number (344646427).

Almost surely, 2^689292853 is an apocalyptic number.

It is an amenable number.

689292853 is a deficient number, since it is larger than the sum of its proper divisors (1).

689292853 is an equidigital number, since it uses as much as digits as its factorization.

689292853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 52.

The square root of 689292853 is about 26254.3873095527. The cubic root of 689292853 is about 883.3536173658.

The spelling of 689292853 in words is "six hundred eighty-nine million, two hundred ninety-two thousand, eight hundred fifty-three".