3698656 has 48 divisors (see below), whose sum is σ = 8319024. Its totient is φ = 1603584.

The previous prime is 3698647. The next prime is 3698657. The reversal of 3698656 is 6568963.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3698657) 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, 6811 + ... + 7333.

It is an arithmetic number, because the mean of its divisors is an integer number (173313).

Almost surely, 2^3698656 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 3698656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4159512).

3698656 is an abundant number, since it is smaller than the sum of its proper divisors (4620368).

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

3698656 is a wasteful number, since it uses less digits than its factorization.

3698656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 555 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 3698656 is about 1923.1890182715. The cubic root of 3698656 is about 154.6493077360.

It can be divided in two parts, 369 and 8656, that added together give a square (9025 = 95²).

The spelling of 3698656 in words is "three million, six hundred ninety-eight thousand, six hundred fifty-six".