1922397 has 8 divisors (see below), whose sum is σ = 2606880. Its totient is φ = 1259760.

The previous prime is 1922387. The next prime is 1922407. The reversal of 1922397 is 7932291.

1922397 is nontrivially palindromic in base 4.

It is an interprime number because it is at equal distance from previous prime (1922387) and next prime (1922407).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1922397 - 2⁷ = 1922269 is a prime.

It is a super-2 number, since 2×1922397² = 7391220451218, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922387) 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 7 ways as a sum of consecutive naturals, for example, 5254 + ... + 5607.

It is an arithmetic number, because the mean of its divisors is an integer number (325860).

2^1922397 is an apocalyptic number.

It is an amenable number.

1922397 is a deficient number, since it is larger than the sum of its proper divisors (684483).

1922397 is a wasteful number, since it uses less digits than its factorization.

1922397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10923.

The product of its digits is 6804, while the sum is 33.

The square root of 1922397 is about 1386.5053191387. The cubic root of 1922397 is about 124.3410012034.

The spelling of 1922397 in words is "one million, nine hundred twenty-two thousand, three hundred ninety-seven".