694278 has 64 divisors (see below), whose sum is σ = 1774080. Its totient is φ = 199584.

The previous prime is 694277. The next prime is 694313. The reversal of 694278 is 872496.

Its product of digits (24192) is a multiple of the sum of its prime divisors (84).

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694271) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 16125 + ... + 16167.

It is an arithmetic number, because the mean of its divisors is an integer number (27720).

2⁶⁹⁴²⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 694278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887040).

694278 is an abundant number, since it is smaller than the sum of its proper divisors (1079802).

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

694278 is a wasteful number, since it uses less digits than its factorization.

694278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 84 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 694278 is about 833.2334606819. The cubic root of 694278 is about 88.5478052553.

The spelling of 694278 in words is "six hundred ninety-four thousand, two hundred seventy-eight".