678022 has 8 divisors (see below), whose sum is σ = 1038816. Its totient is φ = 331752.

The previous prime is 677983. The next prime is 678023. The reversal of 678022 is 220876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3513 + ... + 3700.

It is an arithmetic number, because the mean of its divisors is an integer number (129852).

2⁶⁷⁸⁰²² is an apocalyptic number.

678022 is a deficient number, since it is larger than the sum of its proper divisors (360794).

678022 is a wasteful number, since it uses less digits than its factorization.

678022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7262.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 678022 is about 823.4209130208. The cubic root of 678022 is about 87.8512466259.

Adding to 678022 its reverse (220876), we get a palindrome (898898).

The spelling of 678022 in words is "six hundred seventy-eight thousand, twenty-two".