1673629 has 2 divisors, whose sum is σ = 1673630. Its totient is φ = 1673628.

The previous prime is 1673627. The next prime is 1673663. The reversal of 1673629 is 9263761.

It is an a-pointer prime, because the next prime (1673663) can be obtained adding 1673629 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1505529 + 168100 = 1227^2 + 410^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673629 - 2¹ = 1673627 is a prime.

Together with 1673627, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1673594 and 1673603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1673627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836814 + 836815.

It is an arithmetic number, because the mean of its divisors is an integer number (836815).

2^1673629 is an apocalyptic number.

It is an amenable number.

1673629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673629 is an equidigital number, since it uses as much as digits as its factorization.

1673629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 1673629 is about 1293.6881386176. The cubic root of 1673629 is about 118.7279759710.

The spelling of 1673629 in words is "one million, six hundred seventy-three thousand, six hundred twenty-nine".