612321670 has 32 divisors (see below), whose sum is σ = 1117527840. Its totient is φ = 241539840.

The previous prime is 612321629. The next prime is 612321673. The reversal of 612321670 is 76123216.

612321670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612321673) 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, 252765 + ... + 255175.

It is an arithmetic number, because the mean of its divisors is an integer number (34922745).

Almost surely, 2^612321670 is an apocalyptic number.

612321670 is a deficient number, since it is larger than the sum of its proper divisors (505206170).

612321670 is a wasteful number, since it uses less digits than its factorization.

612321670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2760.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 612321670 is about 24745.1342691851. The cubic root of 612321670 is about 849.1671981557.

Adding to 612321670 its reverse (76123216), we get a palindrome (688444886).

The spelling of 612321670 in words is "six hundred twelve million, three hundred twenty-one thousand, six hundred seventy".