688373423 has 2 divisors, whose sum is σ = 688373424. Its totient is φ = 688373422.

The previous prime is 688373341. The next prime is 688373431. The reversal of 688373423 is 324373886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 688373423 - 2¹⁶ = 688307887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (688373443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344186711 + 344186712.

It is an arithmetic number, because the mean of its divisors is an integer number (344186712).

Almost surely, 2^688373423 is an apocalyptic number.

688373423 is a deficient number, since it is larger than the sum of its proper divisors (1).

688373423 is an equidigital number, since it uses as much as digits as its factorization.

688373423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 44.

The square root of 688373423 is about 26236.8714407797. The cubic root of 688373423 is about 882.9606817184.

The spelling of 688373423 in words is "six hundred eighty-eight million, three hundred seventy-three thousand, four hundred twenty-three".