612310687 has 4 divisors (see below), whose sum is σ = 627245136. Its totient is φ = 597376240.

The previous prime is 612310681. The next prime is 612310691. The reversal of 612310687 is 786013216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 612310687 - 2²³ = 603922079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612310681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7467163 + ... + 7467244.

It is an arithmetic number, because the mean of its divisors is an integer number (156811284).

Almost surely, 2^612310687 is an apocalyptic number.

612310687 is a deficient number, since it is larger than the sum of its proper divisors (14934449).

612310687 is a wasteful number, since it uses less digits than its factorization.

612310687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14934448.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 612310687 is about 24744.9123457732. The cubic root of 612310687 is about 849.1621210534.

The spelling of 612310687 in words is "six hundred twelve million, three hundred ten thousand, six hundred eighty-seven".