694402 has 4 divisors (see below), whose sum is σ = 1041606. Its totient is φ = 347200.

The previous prime is 694391. The next prime is 694409. The reversal of 694402 is 204496.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 591361 + 103041 = 769^2 + 321^2 .

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (694409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173599 + ... + 173602.

2⁶⁹⁴⁴⁰² is an apocalyptic number.

694402 is a deficient number, since it is larger than the sum of its proper divisors (347204).

694402 is a wasteful number, since it uses less digits than its factorization.

694402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347203.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 694402 is about 833.3078662775. The cubic root of 694402 is about 88.5530765704.

Adding to 694402 its reverse (204496), we get a palindrome (898898).

The spelling of 694402 in words is "six hundred ninety-four thousand, four hundred two".