3702281 has 4 divisors (see below), whose sum is σ = 4038864. Its totient is φ = 3365700.

The previous prime is 3702271. The next prime is 3702289. The reversal of 3702281 is 1822073.

3702281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3702281 is a prime.

It is a super-2 number, since 2×3702281² = 27413769205922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3702289) 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 3 ways as a sum of consecutive naturals, for example, 168275 + ... + 168296.

It is an arithmetic number, because the mean of its divisors is an integer number (1009716).

Almost surely, 2^3702281 is an apocalyptic number.

It is an amenable number.

3702281 is a deficient number, since it is larger than the sum of its proper divisors (336583).

3702281 is a wasteful number, since it uses less digits than its factorization.

3702281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336582.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3702281 is about 1924.1312325307. The cubic root of 3702281 is about 154.6998144330.

The spelling of 3702281 in words is "three million, seven hundred two thousand, two hundred eighty-one".