694945616 has 10 divisors (see below), whose sum is σ = 1346457162. Its totient is φ = 347472800.

The previous prime is 694945609. The next prime is 694945627. The reversal of 694945616 is 616549496.

It can be written as a sum of positive squares in only one way, i.e., 462078016 + 232867600 = 21496^2 + 15260^2 .

It is an alternating number because its digits alternate between even and odd.

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, 21717035 + ... + 21717066.

Almost surely, 2^694945616 is an apocalyptic number.

It is an amenable number.

694945616 is a deficient number, since it is larger than the sum of its proper divisors (651511546).

694945616 is a wasteful number, since it uses less digits than its factorization.

694945616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43434109 (or 43434103 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 50.

The square root of 694945616 is about 26361.8211813979. The cubic root of 694945616 is about 885.7617861250.

The spelling of 694945616 in words is "six hundred ninety-four million, nine hundred forty-five thousand, six hundred sixteen".