612908694 has 36 divisors (see below), whose sum is σ = 1378380276. Its totient is φ = 204120972.

The previous prime is 612908693. The next prime is 612908711. The reversal of 612908694 is 496809216.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612908693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 545217 + ... + 546339.

It is an arithmetic number, because the mean of its divisors is an integer number (38288341).

Almost surely, 2^612908694 is an apocalyptic number.

612908694 is an abundant number, since it is smaller than the sum of its proper divisors (765471582).

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

612908694 is an frugal number, since it uses more digits than its factorization.

612908694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 612908694 is about 24756.9928303096. The cubic root of 612908694 is about 849.4384729550.

The spelling of 612908694 in words is "six hundred twelve million, nine hundred eight thousand, six hundred ninety-four".