3667281 has 8 divisors (see below), whose sum is σ = 5102400. Its totient is φ = 2338512.

The previous prime is 3667273. The next prime is 3667289. The reversal of 3667281 is 1827663.

3667281 = T₇₅ + T₇₆ + ... + T₂₈₁.

It is an interprime number because it is at equal distance from previous prime (3667273) and next prime (3667289).

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

It is not a de Polignac number, because 3667281 - 2³ = 3667273 is a prime.

It is a super-2 number, since 2×3667281² = 26897899865922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3667289) 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, 26506 + ... + 26643.

It is an arithmetic number, because the mean of its divisors is an integer number (637800).

Almost surely, 2^3667281 is an apocalyptic number.

It is an amenable number.

3667281 is a deficient number, since it is larger than the sum of its proper divisors (1435119).

3667281 is a wasteful number, since it uses less digits than its factorization.

3667281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53175.

The product of its digits is 12096, while the sum is 33.

The square root of 3667281 is about 1915.0146213541. The cubic root of 3667281 is about 154.2107784492.

The spelling of 3667281 in words is "three million, six hundred sixty-seven thousand, two hundred eighty-one".