3698816 has 64 divisors (see below), whose sum is σ = 8372160. Its totient is φ = 1612800.

The previous prime is 3698801. The next prime is 3698819. The reversal of 3698816 is 6188963.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (3698819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52061 + ... + 52131.

It is an arithmetic number, because the mean of its divisors is an integer number (130815).

Almost surely, 2^3698816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3698816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4186080).

3698816 is an abundant number, since it is smaller than the sum of its proper divisors (4673344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3698816 is a wasteful number, since it uses less digits than its factorization.

3698816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 121 counting only the distinct ones).

The product of its digits is 62208, while the sum is 41.

The square root of 3698816 is about 1923.2306153969. The cubic root of 3698816 is about 154.6515376931.

The spelling of 3698816 in words is "three million, six hundred ninety-eight thousand, eight hundred sixteen".