1673465 has 4 divisors (see below), whose sum is σ = 2008164. Its totient is φ = 1338768.

The previous prime is 1673461. The next prime is 1673489. The reversal of 1673465 is 5643761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5643761 = 181 ⋅31181.

It can be written as a sum of positive squares in 2 ways, for example, as 1236544 + 436921 = 1112^2 + 661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1673465 - 2² = 1673461 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (1673461) 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 in 3 ways as a sum of consecutive naturals, for example, 167342 + ... + 167351.

It is an arithmetic number, because the mean of its divisors is an integer number (502041).

2^1673465 is an apocalyptic number.

It is an amenable number.

1673465 is a deficient number, since it is larger than the sum of its proper divisors (334699).

1673465 is an equidigital number, since it uses as much as digits as its factorization.

1673465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334698.

The product of its digits is 15120, while the sum is 32.

The square root of 1673465 is about 1293.6247523915. The cubic root of 1673465 is about 118.7240977669.

The spelling of 1673465 in words is "one million, six hundred seventy-three thousand, four hundred sixty-five".