612345670 has 16 divisors (see below), whose sum is σ = 1102740768. Its totient is φ = 244823040.

The previous prime is 612345667. The next prime is 612345673. The reversal of 612345670 is 76543216.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (612345667) and next prime (612345673).

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 (612345673) 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 7 ways as a sum of consecutive naturals, for example, 9862 + ... + 36358.

It is an arithmetic number, because the mean of its divisors is an integer number (68921298).

Almost surely, 2^612345670 is an apocalyptic number.

612345670 is a deficient number, since it is larger than the sum of its proper divisors (490395098).

612345670 is a wasteful number, since it uses less digits than its factorization.

612345670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28815.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 612345670 is about 24745.6192082558. The cubic root of 612345670 is about 849.1782924043.

Adding to 612345670 its reverse (76543216), we get a palindrome (688888886).

The spelling of 612345670 in words is "six hundred twelve million, three hundred forty-five thousand, six hundred seventy".