3970281 has 8 divisors (see below), whose sum is σ = 6049984. Its totient is φ = 2268720.

The previous prime is 3970277. The next prime is 3970289. The reversal of 3970281 is 1820793.

It is a happy number.

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

It is not a de Polignac number, because 3970281 - 2² = 3970277 is a prime.

It is a super-2 number, since 2×3970281² = 31526262437922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3970289) 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, 94510 + ... + 94551.

It is an arithmetic number, because the mean of its divisors is an integer number (756248).

Almost surely, 2^3970281 is an apocalyptic number.

It is an amenable number.

3970281 is a deficient number, since it is larger than the sum of its proper divisors (2079703).

3970281 is a wasteful number, since it uses less digits than its factorization.

3970281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189071.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 3970281 is about 1992.5563981981. The cubic root of 3970281 is about 158.3459944323.

The spelling of 3970281 in words is "three million, nine hundred seventy thousand, two hundred eighty-one".