1612669 has 2 divisors, whose sum is σ = 1612670. Its totient is φ = 1612668.

The previous prime is 1612649. The next prime is 1612679. The reversal of 1612669 is 9662161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1352569 + 260100 = 1163^2 + 510^2 .

It is an emirp because it is prime and its reverse (9662161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1612669 - 2⁹ = 1612157 is a prime.

It is a super-2 number, since 2×1612669² = 5201402607122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1612669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1612609) 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 as a sum of consecutive naturals, namely, 806334 + 806335.

It is an arithmetic number, because the mean of its divisors is an integer number (806335).

2^1612669 is an apocalyptic number.

It is an amenable number.

1612669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1612669 is an equidigital number, since it uses as much as digits as its factorization.

1612669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 1612669 is about 1269.9090518616. The cubic root of 1612669 is about 117.2686014832.

The spelling of 1612669 in words is "one million, six hundred twelve thousand, six hundred sixty-nine".