1606679626 has 8 divisors (see below), whose sum is σ = 2410232004. Its totient is φ = 803268960.

The previous prime is 1606679621. The next prime is 1606679677. The reversal of 1606679626 is 6269766061.

It can be written as a sum of positive squares in 2 ways, for example, as 1538600625 + 68079001 = 39225^2 + 8251^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1606679626.

It is not an unprimeable number, because it can be changed into a prime (1606679621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6 + ... + 56686.

Almost surely, 2^1606679626 is an apocalyptic number.

1606679626 is a deficient number, since it is larger than the sum of its proper divisors (803552378).

1606679626 is a wasteful number, since it uses less digits than its factorization.

1606679626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70856.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 1606679626 is about 40083.4083630621. The cubic root of 1606679626 is about 1171.2324476328.

The spelling of 1606679626 in words is "one billion, six hundred six million, six hundred seventy-nine thousand, six hundred twenty-six".