3690481 has 4 divisors (see below), whose sum is σ = 3696192. Its totient is φ = 3684772.

The previous prime is 3690473. The next prime is 3690497. The reversal of 3690481 is 1840963.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1840963 = 97 ⋅18979.

It is a cyclic number.

It is not a de Polignac number, because 3690481 - 2³ = 3690473 is a prime.

It is a super-2 number, since 2×3690481² = 27239300022722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3690781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1741 + ... + 3226.

It is an arithmetic number, because the mean of its divisors is an integer number (924048).

Almost surely, 2^3690481 is an apocalyptic number.

It is an amenable number.

3690481 is a deficient number, since it is larger than the sum of its proper divisors (5711).

3690481 is an equidigital number, since it uses as much as digits as its factorization.

3690481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5710.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3690481 is about 1921.0624664492. The cubic root of 3690481 is about 154.5352851755.

The spelling of 3690481 in words is "three million, six hundred ninety thousand, four hundred eighty-one".