3976997 has 4 divisors (see below), whose sum is σ = 4210956. Its totient is φ = 3743040.

The previous prime is 3976991. The next prime is 3977003. The reversal of 3976997 is 7996793.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3976991) and next prime (3977003).

It can be written as a sum of positive squares in 2 ways, for example, as 3147076 + 829921 = 1774^2 + 911^2 .

It is a cyclic number.

It is not a de Polignac number, because 3976997 - 2⁴ = 3976981 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 (3976991) 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 3 ways as a sum of consecutive naturals, for example, 116954 + ... + 116987.

It is an arithmetic number, because the mean of its divisors is an integer number (1052739).

Almost surely, 2^3976997 is an apocalyptic number.

It is an amenable number.

3976997 is a deficient number, since it is larger than the sum of its proper divisors (233959).

3976997 is a wasteful number, since it uses less digits than its factorization.

3976997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233958.

The product of its digits is 642978, while the sum is 50.

The square root of 3976997 is about 1994.2409583598. The cubic root of 3976997 is about 158.4352284712.

The spelling of 3976997 in words is "three million, nine hundred seventy-six thousand, nine hundred ninety-seven".