3976491 has 8 divisors (see below), whose sum is σ = 5581120. Its totient is φ = 2511432.

The previous prime is 3976481. The next prime is 3976507. The reversal of 3976491 is 1946793.

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

It is not a de Polignac number, because 3976491 - 2⁵ = 3976459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3976481) 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, 34825 + ... + 34938.

It is an arithmetic number, because the mean of its divisors is an integer number (697640).

Almost surely, 2^3976491 is an apocalyptic number.

3976491 is a deficient number, since it is larger than the sum of its proper divisors (1604629).

3976491 is a wasteful number, since it uses less digits than its factorization.

3976491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69785.

The product of its digits is 40824, while the sum is 39.

The square root of 3976491 is about 1994.1140890130. The cubic root of 3976491 is about 158.4285088596.

The spelling of 3976491 in words is "three million, nine hundred seventy-six thousand, four hundred ninety-one".