612228897 has 12 divisors (see below), whose sum is σ = 1010663680. Its totient is φ = 349845048.

The previous prime is 612228839. The next prime is 612228901. The reversal of 612228897 is 798822216.

612228897 is a `hidden beast` number, since 612 + 2 + 28 + 8 + 9 + 7 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-612228897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612228997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4858897 + ... + 4859022.

Almost surely, 2^612228897 is an apocalyptic number.

It is an amenable number.

612228897 is a deficient number, since it is larger than the sum of its proper divisors (398434783).

612228897 is a wasteful number, since it uses less digits than its factorization.

612228897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9717932 (or 9717929 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 612228897 is about 24743.2596276238. The cubic root of 612228897 is about 849.1243101491.

The spelling of 612228897 in words is "six hundred twelve million, two hundred twenty-eight thousand, eight hundred ninety-seven".