612857930 has 16 divisors (see below), whose sum is σ = 1128799584. Its totient is φ = 239442000.

The previous prime is 612857923. The next prime is 612857933. The reversal of 612857930 is 39758216.

It is not an unprimeable number, because it can be changed into a prime (612857933) 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 7 ways as a sum of consecutive naturals, for example, 712196 + ... + 713055.

It is an arithmetic number, because the mean of its divisors is an integer number (70549974).

Almost surely, 2^612857930 is an apocalyptic number.

612857930 is a deficient number, since it is larger than the sum of its proper divisors (515941654).

612857930 is a wasteful number, since it uses less digits than its factorization.

612857930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425301.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 612857930 is about 24755.9675633977. The cubic root of 612857930 is about 849.4150208021.

The spelling of 612857930 in words is "six hundred twelve million, eight hundred fifty-seven thousand, nine hundred thirty".