689394301 has 2 divisors, whose sum is σ = 689394302. Its totient is φ = 689394300.

The previous prime is 689394287. The next prime is 689394311. The reversal of 689394301 is 103493986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 560458276 + 128936025 = 23674^2 + 11355^2 .

It is a cyclic number.

It is not a de Polignac number, because 689394301 - 2²⁵ = 655839869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (689394311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344697150 + 344697151.

It is an arithmetic number, because the mean of its divisors is an integer number (344697151).

Almost surely, 2^689394301 is an apocalyptic number.

It is an amenable number.

689394301 is a deficient number, since it is larger than the sum of its proper divisors (1).

689394301 is an equidigital number, since it uses as much as digits as its factorization.

689394301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 689394301 is about 26256.3192584185. The cubic root of 689394301 is about 883.3969516619.

The spelling of 689394301 in words is "six hundred eighty-nine million, three hundred ninety-four thousand, three hundred one".