612996693 has 16 divisors (see below), whose sum is σ = 895250880. Its totient is φ = 371361536.

The previous prime is 612996689. The next prime is 612996719. The reversal of 612996693 is 396699216.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 612996693 - 2² = 612996689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612996623) 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 15 ways as a sum of consecutive naturals, for example, 205755 + ... + 208712.

It is an arithmetic number, because the mean of its divisors is an integer number (55953180).

Almost surely, 2^612996693 is an apocalyptic number.

It is an amenable number.

612996693 is a deficient number, since it is larger than the sum of its proper divisors (282254187).

612996693 is a wasteful number, since it uses less digits than its factorization.

612996693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414516.

The product of its digits is 944784, while the sum is 51.

The square root of 612996693 is about 24758.7700219538. The cubic root of 612996693 is about 849.4791240121.

The spelling of 612996693 in words is "six hundred twelve million, nine hundred ninety-six thousand, six hundred ninety-three".