612392870 has 32 divisors (see below), whose sum is σ = 1171672128. Its totient is φ = 229654528.

The previous prime is 612392867. The next prime is 612392897. The reversal of 612392870 is 78293216.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 37862 + ... + 51558.

It is an arithmetic number, because the mean of its divisors is an integer number (36614754).

Almost surely, 2^612392870 is an apocalyptic number.

612392870 is a deficient number, since it is larger than the sum of its proper divisors (559279258).

612392870 is a wasteful number, since it uses less digits than its factorization.

612392870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13984.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 612392870 is about 24746.5728940393. The cubic root of 612392870 is about 849.2001102476.

The spelling of 612392870 in words is "six hundred twelve million, three hundred ninety-two thousand, eight hundred seventy".