698923 has 2 divisors, whose sum is σ = 698924. Its totient is φ = 698922.

The previous prime is 698903. The next prime is 698939. The reversal of 698923 is 329896.

698923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 698923 - 2⁵ = 698891 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (698903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349461 + 349462.

It is an arithmetic number, because the mean of its divisors is an integer number (349462).

2⁶⁹⁸⁹²³ is an apocalyptic number.

698923 is a deficient number, since it is larger than the sum of its proper divisors (1).

698923 is an equidigital number, since it uses as much as digits as its factorization.

698923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 698923 is about 836.0161481694. The cubic root of 698923 is about 88.7448400095.

The spelling of 698923 in words is "six hundred ninety-eight thousand, nine hundred twenty-three".