690341 has 2 divisors, whose sum is σ = 690342. Its totient is φ = 690340.

The previous prime is 690323. The next prime is 690367. The reversal of 690341 is 143096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450241 + 240100 = 671^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 690341 - 2¹⁰ = 689317 is a prime.

It is a Chen prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (690541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345170 + 345171.

It is an arithmetic number, because the mean of its divisors is an integer number (345171).

2⁶⁹⁰³⁴¹ is an apocalyptic number.

It is an amenable number.

690341 is a deficient number, since it is larger than the sum of its proper divisors (1).

690341 is an equidigital number, since it uses as much as digits as its factorization.

690341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 690341 is about 830.8676188178. The cubic root of 690341 is about 88.3801136652.

The spelling of 690341 in words is "six hundred ninety thousand, three hundred forty-one".