694780 has 12 divisors (see below), whose sum is σ = 1459080. Its totient is φ = 277904.

The previous prime is 694763. The next prime is 694781. The reversal of 694780 is 87496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694781) by changing a digit.

694780 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17350 + ... + 17389.

It is an arithmetic number, because the mean of its divisors is an integer number (121590).

2⁶⁹⁴⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

694780 is an abundant number, since it is smaller than the sum of its proper divisors (764300).

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

694780 is a wasteful number, since it uses less digits than its factorization.

694780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34748 (or 34746 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 694780 is about 833.5346423515. The cubic root of 694780 is about 88.5691417080.

It can be divided in two parts, 694 and 780, that multiplied together give a triangular number (541320 = T₁₀₄₀).

The spelling of 694780 in words is "six hundred ninety-four thousand, seven hundred eighty".