1793921 has 2 divisors, whose sum is σ = 1793922. Its totient is φ = 1793920.

The previous prime is 1793887. The next prime is 1793927. The reversal of 1793921 is 1293971.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1784896 + 9025 = 1336^2 + 95^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1793921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1793927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 896960 + 896961.

It is an arithmetic number, because the mean of its divisors is an integer number (896961).

2^1793921 is an apocalyptic number.

It is an amenable number.

1793921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1793921 is an equidigital number, since it uses as much as digits as its factorization.

1793921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402, while the sum is 32.

The square root of 1793921 is about 1339.3733609416. The cubic root of 1793921 is about 121.5069458114.

The spelling of 1793921 in words is "one million, seven hundred ninety-three thousand, nine hundred twenty-one".