694513 has 2 divisors, whose sum is σ = 694514. Its totient is φ = 694512.

The previous prime is 694511. The next prime is 694523. The reversal of 694513 is 315496.

694513 is nontrivially palindromic in base 9 and base 15.

694513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 651249 + 43264 = 807^2 + 208^2 .

It is a cyclic number.

It is not a de Polignac number, because 694513 - 2¹ = 694511 is a prime.

Together with 694511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (694511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347256 + 347257.

It is an arithmetic number, because the mean of its divisors is an integer number (347257).

2⁶⁹⁴⁵¹³ is an apocalyptic number.

It is an amenable number.

694513 is a deficient number, since it is larger than the sum of its proper divisors (1).

694513 is an equidigital number, since it uses as much as digits as its factorization.

694513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 694513 is about 833.3744656515. The cubic root of 694513 is about 88.5577947153.

The spelling of 694513 in words is "six hundred ninety-four thousand, five hundred thirteen".