608778 has 24 divisors (see below), whose sum is σ = 1362816. Its totient is φ = 196200.

The previous prime is 608767. The next prime is 608789. The reversal of 608778 is 877806.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (608767) and next prime (608789).

It is a super-2 number, since 2×608778² = 741221306568, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 13 + ... + 1103.

It is an arithmetic number, because the mean of its divisors is an integer number (56784).

2⁶⁰⁸⁷⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 608778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681408).

608778 is an abundant number, since it is smaller than the sum of its proper divisors (754038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

608778 is a wasteful number, since it uses less digits than its factorization.

608778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 608778 is about 780.2422700674. The cubic root of 608778 is about 84.7525908311.

The spelling of 608778 in words is "six hundred eight thousand, seven hundred seventy-eight".