1673401 has 2 divisors, whose sum is σ = 1673402. Its totient is φ = 1673400.

The previous prime is 1673393. The next prime is 1673407. The reversal of 1673401 is 1043761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1071225 + 602176 = 1035^2 + 776^2 .

It is an emirp because it is prime and its reverse (1043761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1673401 - 2³ = 1673393 is a prime.

It is a Chen prime.

It is equal to p₁₂₆₂₇₄ and since 1673401 and 126274 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1673407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836700 + 836701.

It is an arithmetic number, because the mean of its divisors is an integer number (836701).

2^1673401 is an apocalyptic number.

It is an amenable number.

1673401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673401 is an equidigital number, since it uses as much as digits as its factorization.

1673401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1673401 is about 1293.6000154607. The cubic root of 1673401 is about 118.7225842527.

The spelling of 1673401 in words is "one million, six hundred seventy-three thousand, four hundred one".