3957471 has 16 divisors (see below), whose sum is σ = 6700800. Its totient is φ = 2261304.

The previous prime is 3957451. The next prime is 3957479. The reversal of 3957471 is 1747593.

It is a happy number.

It is not a de Polignac number, because 3957471 - 2⁵ = 3957439 is a prime.

It is a super-3 number, since 3×3957471³ (a number of 21 digits) contains 333 as substring.

3957471 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10281 + ... + 10658.

It is an arithmetic number, because the mean of its divisors is an integer number (418800).

Almost surely, 2^3957471 is an apocalyptic number.

3957471 is a deficient number, since it is larger than the sum of its proper divisors (2743329).

3957471 is a wasteful number, since it uses less digits than its factorization.

3957471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20955 (or 20949 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 3957471 is about 1989.3393375691. The cubic root of 3957471 is about 158.1755113149.

The spelling of 3957471 in words is "three million, nine hundred fifty-seven thousand, four hundred seventy-one".