1533673 has 2 divisors, whose sum is σ = 1533674. Its totient is φ = 1533672.

The previous prime is 1533659. The next prime is 1533683. The reversal of 1533673 is 3763351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 974169 + 559504 = 987^2 + 748^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1533673 is a prime.

It is not a weakly prime, because it can be changed into another prime (1533643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766836 + 766837.

It is an arithmetic number, because the mean of its divisors is an integer number (766837).

2^1533673 is an apocalyptic number.

It is an amenable number.

1533673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533673 is an equidigital number, since it uses as much as digits as its factorization.

1533673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 28.

The square root of 1533673 is about 1238.4155199286. The cubic root of 1533673 is about 115.3216702950.

The spelling of 1533673 in words is "one million, five hundred thirty-three thousand, six hundred seventy-three".