699401 has 2 divisors, whose sum is σ = 699402. Its totient is φ = 699400.

The previous prime is 699383. The next prime is 699427. The reversal of 699401 is 104996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 577600 + 121801 = 760^2 + 349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-699401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (699001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349700 + 349701.

It is an arithmetic number, because the mean of its divisors is an integer number (349701).

2⁶⁹⁹⁴⁰¹ is an apocalyptic number.

It is an amenable number.

699401 is a deficient number, since it is larger than the sum of its proper divisors (1).

699401 is an equidigital number, since it uses as much as digits as its factorization.

699401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 699401 is about 836.3019789526. The cubic root of 699401 is about 88.7650665421.

The spelling of 699401 in words is "six hundred ninety-nine thousand, four hundred one".