3976393 has 4 divisors (see below), whose sum is σ = 4113540. Its totient is φ = 3839248.

The previous prime is 3976391. The next prime is 3976397. The reversal of 3976393 is 3936793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3936793 = 7 ⋅562399.

It can be written as a sum of positive squares in 2 ways, for example, as 1750329 + 2226064 = 1323^2 + 1492^2 .

It is a cyclic number.

It is not a de Polignac number, because 3976393 - 2¹ = 3976391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3976391) 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, 68530 + ... + 68587.

It is an arithmetic number, because the mean of its divisors is an integer number (1028385).

Almost surely, 2^3976393 is an apocalyptic number.

It is an amenable number.

3976393 is a deficient number, since it is larger than the sum of its proper divisors (137147).

3976393 is a wasteful number, since it uses less digits than its factorization.

3976393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137146.

The product of its digits is 91854, while the sum is 40.

The square root of 3976393 is about 1994.0895165463. The cubic root of 3976393 is about 158.4272073669.

The spelling of 3976393 in words is "three million, nine hundred seventy-six thousand, three hundred ninety-three".