1673389 has 2 divisors, whose sum is σ = 1673390. Its totient is φ = 1673388.

The previous prime is 1673381. The next prime is 1673393. The reversal of 1673389 is 9833761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1562500 + 110889 = 1250^2 + 333^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673389 - 2³ = 1673381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1673381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836694 + 836695.

It is an arithmetic number, because the mean of its divisors is an integer number (836695).

2^1673389 is an apocalyptic number.

It is an amenable number.

1673389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673389 is an equidigital number, since it uses as much as digits as its factorization.

1673389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 37.

The square root of 1673389 is about 1293.5953772335. The cubic root of 1673389 is about 118.7223004645.

The spelling of 1673389 in words is "one million, six hundred seventy-three thousand, three hundred eighty-nine".