612806990 has 16 divisors (see below), whose sum is σ = 1167938352. Its totient is φ = 230703744.

The previous prime is 612806989. The next prime is 612807059. The reversal of 612806990 is 99608216.

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 7 ways as a sum of consecutive naturals, for example, 1802204 + ... + 1802543.

It is an arithmetic number, because the mean of its divisors is an integer number (72996147).

Almost surely, 2^612806990 is an apocalyptic number.

612806990 is a deficient number, since it is larger than the sum of its proper divisors (555131362).

612806990 is a wasteful number, since it uses less digits than its factorization.

612806990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604771.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 612806990 is about 24754.9386991768. The cubic root of 612806990 is about 849.3914860382.

The spelling of 612806990 in words is "six hundred twelve million, eight hundred six thousand, nine hundred ninety".