694458068 has 6 divisors (see below), whose sum is σ = 1215301626. Its totient is φ = 347229032.

The previous prime is 694458059. The next prime is 694458071. The reversal of 694458068 is 860854496.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 390931984 + 303526084 = 19772^2 + 17422^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86807255 + ... + 86807262.

It is an arithmetic number, because the mean of its divisors is an integer number (202550271).

Almost surely, 2^694458068 is an apocalyptic number.

It is an amenable number.

694458068 is a deficient number, since it is larger than the sum of its proper divisors (520843558).

694458068 is a wasteful number, since it uses less digits than its factorization.

694458068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173614521 (or 173614519 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 50.

The square root of 694458068 is about 26352.5723222611. The cubic root of 694458068 is about 885.5545984895.

The spelling of 694458068 in words is "six hundred ninety-four million, four hundred fifty-eight thousand, sixty-eight".