3690281 has 8 divisors (see below), whose sum is σ = 4401024. Its totient is φ = 3025440.

The previous prime is 3690259. The next prime is 3690301. The reversal of 3690281 is 1820963.

3690281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3690281 - 2¹⁸ = 3428137 is a prime.

It is a super-2 number, since 2×3690281² = 27236347717922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3690251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11300 + ... + 11621.

It is an arithmetic number, because the mean of its divisors is an integer number (550128).

Almost surely, 2^3690281 is an apocalyptic number.

It is an amenable number.

3690281 is a deficient number, since it is larger than the sum of its proper divisors (710743).

3690281 is a wasteful number, since it uses less digits than its factorization.

3690281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22951.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 3690281 is about 1921.0104112159. The cubic root of 3690281 is about 154.5324935235.

The spelling of 3690281 in words is "three million, six hundred ninety thousand, two hundred eighty-one".