3976257 has 4 divisors (see below), whose sum is σ = 5301680. Its totient is φ = 2650836.

The previous prime is 3976241. The next prime is 3976261. The reversal of 3976257 is 7526793.

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.

It is not a de Polignac number, because 3976257 - 2⁴ = 3976241 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 9 + 7⁴ + 6⁸ + 2²¹ + 5⁵ + 7⁵ .

It is a D-number.

It is a Duffinian number.

3976257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3976207) 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, 662707 + ... + 662712.

It is an arithmetic number, because the mean of its divisors is an integer number (1325420).

Almost surely, 2^3976257 is an apocalyptic number.

It is an amenable number.

3976257 is a deficient number, since it is larger than the sum of its proper divisors (1325423).

3976257 is a wasteful number, since it uses less digits than its factorization.

3976257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325422.

The product of its digits is 79380, while the sum is 39.

The square root of 3976257 is about 1994.0554154787. The cubic root of 3976257 is about 158.4254011784.

The spelling of 3976257 in words is "three million, nine hundred seventy-six thousand, two hundred fifty-seven".