3699881 has 12 divisors (see below), whose sum is σ = 3969792. Its totient is φ = 3444000.

The previous prime is 3699869. The next prime is 3699893. The reversal of 3699881 is 1889963.

3699881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3699869) and next prime (3699893).

It is a de Polignac number, because none of the positive numbers 2^k-3699881 is a prime.

It is a super-2 number, since 2×3699881² = 27378238828322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3699841) 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 11 ways as a sum of consecutive naturals, for example, 52076 + ... + 52146.

It is an arithmetic number, because the mean of its divisors is an integer number (330816).

Almost surely, 2^3699881 is an apocalyptic number.

3699881 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3699881 is a deficient number, since it is larger than the sum of its proper divisors (269911).

3699881 is an equidigital number, since it uses as much as digits as its factorization.

3699881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 143 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 3699881 is about 1923.5074733413. The cubic root of 3699881 is about 154.6663792066. Note that the first 3 decimals are identical.

The spelling of 3699881 in words is "three million, six hundred ninety-nine thousand, eight hundred eighty-one".