612784806 has 16 divisors (see below), whose sum is σ = 1226486448. Its totient is φ = 204108800.

The previous prime is 612784763. The next prime is 612784807. The reversal of 612784806 is 608487216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612784807) 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, 29355 + ... + 45686.

It is an arithmetic number, because the mean of its divisors is an integer number (76655403).

Almost surely, 2^612784806 is an apocalyptic number.

612784806 is an abundant number, since it is smaller than the sum of its proper divisors (613701642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

612784806 is a wasteful number, since it uses less digits than its factorization.

612784806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76407.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 612784806 is about 24754.4906229153. The cubic root of 612784806 is about 849.3812364118.

The spelling of 612784806 in words is "six hundred twelve million, seven hundred eighty-four thousand, eight hundred six".