1972393 has 4 divisors (see below), whose sum is σ = 1997440. Its totient is φ = 1947348.

The previous prime is 1972381. The next prime is 1972417. The reversal of 1972393 is 3932791.

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 1972393 - 2⁵ = 1972361 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972343) 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, 12405 + ... + 12562.

It is an arithmetic number, because the mean of its divisors is an integer number (499360).

2^1972393 is an apocalyptic number.

It is an amenable number.

1972393 is a deficient number, since it is larger than the sum of its proper divisors (25047).

1972393 is an equidigital number, since it uses as much as digits as its factorization.

1972393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25046.

The product of its digits is 10206, while the sum is 34.

The square root of 1972393 is about 1404.4190969935. The cubic root of 1972393 is about 125.4097063253.

The spelling of 1972393 in words is "one million, nine hundred seventy-two thousand, three hundred ninety-three".