606778 has 4 divisors (see below), whose sum is σ = 910170. Its totient is φ = 303388.

The previous prime is 606757. The next prime is 606791. The reversal of 606778 is 877606.

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., 499849 + 106929 = 707^2 + 327^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151693 + ... + 151696.

2⁶⁰⁶⁷⁷⁸ is an apocalyptic number.

606778 is a deficient number, since it is larger than the sum of its proper divisors (303392).

606778 is a wasteful number, since it uses less digits than its factorization.

606778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303391.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 606778 is about 778.9595624935. The cubic root of 606778 is about 84.6596772979.

The spelling of 606778 in words is "six hundred six thousand, seven hundred seventy-eight".