1930953 has 4 divisors (see below), whose sum is σ = 2574608. Its totient is φ = 1287300.

The previous prime is 1930939. The next prime is 1930961. The reversal of 1930953 is 3590391.

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 not a de Polignac number, because 1930953 - 2⁴ = 1930937 is a prime.

It is a D-number.

It is a Duffinian number.

1930953 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1930953.

It is not an unprimeable number, because it can be changed into a prime (1930963) 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 in 3 ways as a sum of consecutive naturals, for example, 321823 + ... + 321828.

It is an arithmetic number, because the mean of its divisors is an integer number (643652).

2^1930953 is an apocalyptic number.

It is an amenable number.

1930953 is a deficient number, since it is larger than the sum of its proper divisors (643655).

1930953 is an equidigital number, since it uses as much as digits as its factorization.

1930953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643654.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 1930953 is about 1389.5873488198. The cubic root of 1930953 is about 124.5251961069.

The spelling of 1930953 in words is "one million, nine hundred thirty thousand, nine hundred fifty-three".