696778 has 4 divisors (see below), whose sum is σ = 1045170. Its totient is φ = 348388.

The previous prime is 696763. The next prime is 696793. The reversal of 696778 is 877696.

696778 is nontrivially palindromic in base 15.

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

It is an interprime number because it is at equal distance from previous prime (696763) and next prime (696793).

It can be written as a sum of positive squares in only one way, i.e., 368449 + 328329 = 607^2 + 573^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174193 + ... + 174196.

2⁶⁹⁶⁷⁷⁸ is an apocalyptic number.

696778 is a deficient number, since it is larger than the sum of its proper divisors (348392).

696778 is a wasteful number, since it uses less digits than its factorization.

696778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348391.

The product of its digits is 127008, while the sum is 43.

The square root of 696778 is about 834.7322924148. The cubic root of 696778 is about 88.6539607801.

The spelling of 696778 in words is "six hundred ninety-six thousand, seven hundred seventy-eight".