1670533 has 2 divisors, whose sum is σ = 1670534. Its totient is φ = 1670532.

The previous prime is 1670531. The next prime is 1670551. The reversal of 1670533 is 3350761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1633284 + 37249 = 1278^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1670533 - 2¹ = 1670531 is a prime.

Together with 1670531, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1670498 and 1670507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1670531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 835266 + 835267.

It is an arithmetic number, because the mean of its divisors is an integer number (835267).

2^1670533 is an apocalyptic number.

It is an amenable number.

1670533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1670533 is an equidigital number, since it uses as much as digits as its factorization.

1670533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 1670533 is about 1292.4910057714. The cubic root of 1670533 is about 118.6547202481.

The spelling of 1670533 in words is "one million, six hundred seventy thousand, five hundred thirty-three".