612884649 has 8 divisors (see below), whose sum is σ = 880039552. Its totient is φ = 377159760.

The previous prime is 612884641. The next prime is 612884651. The reversal of 612884649 is 946488216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 612884649 - 2³ = 612884641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612884598 and 612884607.

It is not an unprimeable number, because it can be changed into a prime (612884641) 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, 7857457 + ... + 7857534.

It is an arithmetic number, because the mean of its divisors is an integer number (110004944).

Almost surely, 2^612884649 is an apocalyptic number.

It is an amenable number.

612884649 is a deficient number, since it is larger than the sum of its proper divisors (267154903).

612884649 is a wasteful number, since it uses less digits than its factorization.

612884649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15715007.

The product of its digits is 663552, while the sum is 48.

The square root of 612884649 is about 24756.5072051774. The cubic root of 612884649 is about 849.4273647125.

The spelling of 612884649 in words is "six hundred twelve million, eight hundred eighty-four thousand, six hundred forty-nine".