1934821 has 16 divisors (see below), whose sum is σ = 2384640. Its totient is φ = 1532160.

The previous prime is 1934797. The next prime is 1934833. The reversal of 1934821 is 1284391.

It is a happy number.

It is not a de Polignac number, because 1934821 - 2¹⁵ = 1902053 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1934821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1934021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8335 + ... + 8563.

It is an arithmetic number, because the mean of its divisors is an integer number (149040).

2^1934821 is an apocalyptic number.

It is an amenable number.

1934821 is a deficient number, since it is larger than the sum of its proper divisors (449819).

1934821 is a wasteful number, since it uses less digits than its factorization.

1934821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324.

The product of its digits is 1728, while the sum is 28.

The square root of 1934821 is about 1390.9784326150. The cubic root of 1934821 is about 124.6082884453.

The spelling of 1934821 in words is "one million, nine hundred thirty-four thousand, eight hundred twenty-one".