612576321 has 16 divisors (see below), whose sum is σ = 982579200. Its totient is φ = 331620048.

The previous prime is 612576301. The next prime is 612576353. The reversal of 612576321 is 123675216.

It is not a de Polignac number, because 612576321 - 2⁶ = 612576257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612576301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767241 + ... + 768038.

It is an arithmetic number, because the mean of its divisors is an integer number (61411200).

Almost surely, 2^612576321 is an apocalyptic number.

It is an amenable number.

612576321 is a deficient number, since it is larger than the sum of its proper divisors (370002879).

612576321 is a wasteful number, since it uses less digits than its factorization.

612576321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535308.

The product of its digits is 15120, while the sum is 33.

The square root of 612576321 is about 24750.2792105463. The cubic root of 612576321 is about 849.2848984413.

The spelling of 612576321 in words is "six hundred twelve million, five hundred seventy-six thousand, three hundred twenty-one".