1934921 has 4 divisors (see below), whose sum is σ = 2019072. Its totient is φ = 1850772.

The previous prime is 1934897. The next prime is 1934951. The reversal of 1934921 is 1294391.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1294391 = 7 ⋅184913.

It is a cyclic number.

It is not a de Polignac number, because 1934921 - 2¹⁴ = 1918537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1934951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42041 + ... + 42086.

It is an arithmetic number, because the mean of its divisors is an integer number (504768).

2^1934921 is an apocalyptic number.

It is an amenable number.

1934921 is a deficient number, since it is larger than the sum of its proper divisors (84151).

1934921 is an equidigital number, since it uses as much as digits as its factorization.

1934921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84150.

The product of its digits is 1944, while the sum is 29.

The square root of 1934921 is about 1391.0143780709. The cubic root of 1934921 is about 124.6104351752.

The spelling of 1934921 in words is "one million, nine hundred thirty-four thousand, nine hundred twenty-one".