3698920 has 64 divisors (see below), whose sum is σ = 9100800. Its totient is φ = 1347840.

The previous prime is 3698917. The next prime is 3698941. The reversal of 3698920 is 298963.

It is a self number, because there is not a number n which added to its sum of digits gives 3698920.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23482 + ... + 23638.

It is an arithmetic number, because the mean of its divisors is an integer number (142200).

Almost surely, 2^3698920 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 3698920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4550400).

3698920 is an abundant number, since it is smaller than the sum of its proper divisors (5401880).

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

3698920 is a wasteful number, since it uses less digits than its factorization.

3698920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 3698920 is about 1923.2576530460. The cubic root of 3698920 is about 154.6529871307.

The spelling of 3698920 in words is "three million, six hundred ninety-eight thousand, nine hundred twenty".