1930393 has 4 divisors (see below), whose sum is σ = 1934608. Its totient is φ = 1926180.

The previous prime is 1930391. The next prime is 1930417. The reversal of 1930393 is 3930391.

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.

It is a cyclic number.

It is not a de Polignac number, because 1930393 - 2¹ = 1930391 is a prime.

It is a Duffinian number.

1930393 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1930391) 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, 1323 + ... + 2368.

It is an arithmetic number, because the mean of its divisors is an integer number (483652).

2^1930393 is an apocalyptic number.

It is an amenable number.

1930393 is a deficient number, since it is larger than the sum of its proper divisors (4215).

1930393 is an equidigital number, since it uses as much as digits as its factorization.

1930393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 1930393 is about 1389.3858355403. The cubic root of 1930393 is about 124.5131569995.

The spelling of 1930393 in words is "one million, nine hundred thirty thousand, three hundred ninety-three".