3896971 has 6 divisors (see below), whose sum is σ = 4219980. Its totient is φ = 3597048.

The previous prime is 3896969. The next prime is 3896987. The reversal of 3896971 is 1796983.

It is not a de Polignac number, because 3896971 - 2¹ = 3896969 is a prime.

It is a Duffinian number.

3896971 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3896941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11361 + ... + 11698.

It is an arithmetic number, because the mean of its divisors is an integer number (703330).

Almost surely, 2^3896971 is an apocalyptic number.

3896971 is a deficient number, since it is larger than the sum of its proper divisors (323009).

3896971 is a wasteful number, since it uses less digits than its factorization.

3896971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23085 (or 23072 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 3896971 is about 1974.0747199638. The cubic root of 3896971 is about 157.3653304205.

The spelling of 3896971 in words is "three million, eight hundred ninety-six thousand, nine hundred seventy-one".