612006646 has 32 divisors (see below), whose sum is σ = 960698880. Its totient is φ = 292178016.

The previous prime is 612006607. The next prime is 612006697. The reversal of 612006646 is 646600216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903660 + ... + 904336.

It is an arithmetic number, because the mean of its divisors is an integer number (30021840).

Almost surely, 2^612006646 is an apocalyptic number.

612006646 is a deficient number, since it is larger than the sum of its proper divisors (348692234).

612006646 is a wasteful number, since it uses less digits than its factorization.

612006646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 612006646 is about 24738.7680776550. The cubic root of 612006646 is about 849.0215481653.

The spelling of 612006646 in words is "six hundred twelve million, six thousand, six hundred forty-six".