3975481 has 8 divisors (see below), whose sum is σ = 4184064. Its totient is φ = 3769920.

The previous prime is 3975473. The next prime is 3975487. The reversal of 3975481 is 1845793.

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

It is a cyclic number.

It is not a de Polignac number, because 3975481 - 2³ = 3975473 is a prime.

It is a super-2 number, since 2×3975481² = 31608898362722, which contains 22 as substring.

It is a Duffinian number.

3975481 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3975481.

It is not an unprimeable number, because it can be changed into a prime (3975487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2241 + ... + 3601.

It is an arithmetic number, because the mean of its divisors is an integer number (523008).

Almost surely, 2^3975481 is an apocalyptic number.

It is an amenable number.

3975481 is a deficient number, since it is larger than the sum of its proper divisors (208583).

3975481 is a wasteful number, since it uses less digits than its factorization.

3975481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511.

The product of its digits is 30240, while the sum is 37.

The square root of 3975481 is about 1993.8608276407. The cubic root of 3975481 is about 158.4150944914.

The spelling of 3975481 in words is "three million, nine hundred seventy-five thousand, four hundred eighty-one".