1941397 has 4 divisors (see below), whose sum is σ = 1949760. Its totient is φ = 1933036.

The previous prime is 1941389. The next prime is 1941403. The reversal of 1941397 is 7931491.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7931491 = 41 ⋅193451.

It is a cyclic number.

It is not a de Polignac number, because 1941397 - 2³ = 1941389 is a prime.

It is a super-3 number, since 3×1941397³ = 21951505826072333319, which contains 333 as substring.

It is a Duffinian number.

1941397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1941307) 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, 3823 + ... + 4300.

It is an arithmetic number, because the mean of its divisors is an integer number (487440).

2^1941397 is an apocalyptic number.

It is an amenable number.

1941397 is a deficient number, since it is larger than the sum of its proper divisors (8363).

1941397 is an equidigital number, since it uses as much as digits as its factorization.

1941397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8362.

The product of its digits is 6804, while the sum is 34.

The square root of 1941397 is about 1393.3402312429. The cubic root of 1941397 is about 124.7493001997.

The spelling of 1941397 in words is "one million, nine hundred forty-one thousand, three hundred ninety-seven".