694831 has 2 divisors, whose sum is σ = 694832. Its totient is φ = 694830.

The previous prime is 694829. The next prime is 694867. The reversal of 694831 is 138496.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 694831 - 2¹ = 694829 is a prime.

It is a super-2 number, since 2×694831² = 965580237122, which contains 22 as substring.

Together with 694829, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 694793 and 694802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (694871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347415 + 347416.

It is an arithmetic number, because the mean of its divisors is an integer number (347416).

2⁶⁹⁴⁸³¹ is an apocalyptic number.

694831 is a deficient number, since it is larger than the sum of its proper divisors (1).

694831 is an equidigital number, since it uses as much as digits as its factorization.

694831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 694831 is about 833.5652343998. The cubic root of 694831 is about 88.5713087804.

It can be divided in two parts, 69 and 4831, that added together give a square (4900 = 70²).

The spelling of 694831 in words is "six hundred ninety-four thousand, eight hundred thirty-one".