326778 has 16 divisors (see below), whose sum is σ = 660960. Its totient is φ = 107696.

The previous prime is 326773. The next prime is 326779. The reversal of 326778 is 877623.

It is a super-2 number, since 2×326778² = 213567722568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (326773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388 + ... + 896.

It is an arithmetic number, because the mean of its divisors is an integer number (41310).

2³²⁶⁷⁷⁸ is an apocalyptic number.

326778 is an abundant number, since it is smaller than the sum of its proper divisors (334182).

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

326778 is a wasteful number, since it uses less digits than its factorization.

326778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621.

The product of its digits is 14112, while the sum is 33.

The square root of 326778 is about 571.6449947301. The cubic root of 326778 is about 68.8785934821.

The spelling of 326778 in words is "three hundred twenty-six thousand, seven hundred seventy-eight".