690163 has 2 divisors, whose sum is σ = 690164. Its totient is φ = 690162.

The previous prime is 690143. The next prime is 690187. The reversal of 690163 is 361096.

690163 is nontrivially palindromic in base 7.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 690163 - 2¹³ = 681971 is a prime.

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

It is equal to p₅₅₈₂₅ and since 690163 and 55825 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (690103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345081 + 345082.

It is an arithmetic number, because the mean of its divisors is an integer number (345082).

2⁶⁹⁰¹⁶³ is an apocalyptic number.

690163 is a deficient number, since it is larger than the sum of its proper divisors (1).

690163 is an equidigital number, since it uses as much as digits as its factorization.

690163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 690163 is about 830.7604949683. The cubic root of 690163 is about 88.3725169304.

The spelling of 690163 in words is "six hundred ninety thousand, one hundred sixty-three".