1930997 has 4 divisors (see below), whose sum is σ = 1955520. Its totient is φ = 1906476.

The previous prime is 1930969. The next prime is 1931009. The reversal of 1930997 is 7990391.

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 1930997 - 2¹⁰ = 1929973 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 1930997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930927) 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, 12143 + ... + 12300.

It is an arithmetic number, because the mean of its divisors is an integer number (488880).

2^1930997 is an apocalyptic number.

It is an amenable number.

1930997 is a deficient number, since it is larger than the sum of its proper divisors (24523).

1930997 is an equidigital number, since it uses as much as digits as its factorization.

1930997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24522.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 1930997 is about 1389.6031807678. The cubic root of 1930997 is about 124.5261419382.

The spelling of 1930997 in words is "one million, nine hundred thirty thousand, nine hundred ninety-seven".