1976393 has 2 divisors, whose sum is σ = 1976394. Its totient is φ = 1976392.

The previous prime is 1976383. The next prime is 1976411. The reversal of 1976393 is 3936791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1530169 + 446224 = 1237^2 + 668^2 .

It is an emirp because it is prime and its reverse (3936791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1976393 - 2¹² = 1972297 is a prime.

It is a super-2 number, since 2×1976393² = 7812258580898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1976333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 988196 + 988197.

It is an arithmetic number, because the mean of its divisors is an integer number (988197).

2^1976393 is an apocalyptic number.

It is an amenable number.

1976393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1976393 is an equidigital number, since it uses as much as digits as its factorization.

1976393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 38.

The square root of 1976393 is about 1405.8424520550. The cubic root of 1976393 is about 125.4944257668.

The spelling of 1976393 in words is "one million, nine hundred seventy-six thousand, three hundred ninety-three".