3658398 has 16 divisors (see below), whose sum is σ = 7345296. Its totient is φ = 1214720.

The previous prime is 3658387. The next prime is 3658399. The reversal of 3658398 is 8938563.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3658399) 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, 718 + ... + 2798.

It is an arithmetic number, because the mean of its divisors is an integer number (459081).

Almost surely, 2^3658398 is an apocalyptic number.

3658398 is an abundant number, since it is smaller than the sum of its proper divisors (3686898).

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

3658398 is a wasteful number, since it uses less digits than its factorization.

3658398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379.

The product of its digits is 155520, while the sum is 42.

The square root of 3658398 is about 1912.6939117381. The cubic root of 3658398 is about 154.0861664301.

The spelling of 3658398 in words is "three million, six hundred fifty-eight thousand, three hundred ninety-eight".