3698688 has 104 divisors (see below), whose sum is σ = 11532928. Its totient is φ = 1032192.

The previous prime is 3698683. The next prime is 3698693. The reversal of 3698688 is 8868963.

It is an interprime number because it is at equal distance from previous prime (3698683) and next prime (3698693).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3698683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85995 + ... + 86037.

Almost surely, 2^3698688 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 3698688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5766464).

3698688 is an abundant number, since it is smaller than the sum of its proper divisors (7834240).

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

3698688 is an equidigital number, since it uses as much as digits as its factorization.

3698688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 55 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 3698688 is about 1923.1973377685. The cubic root of 3698688 is about 154.6497537326.

The spelling of 3698688 in words is "three million, six hundred ninety-eight thousand, six hundred eighty-eight".