3658890 has 16 divisors (see below), whose sum is σ = 8781408. Its totient is φ = 975696.

The previous prime is 3658877. The next prime is 3658891. The reversal of 3658890 is 988563.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3658891) 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, 60952 + ... + 61011.

It is an arithmetic number, because the mean of its divisors is an integer number (548838).

Almost surely, 2^3658890 is an apocalyptic number.

3658890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3658890 is an abundant number, since it is smaller than the sum of its proper divisors (5122518).

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

3658890 is a wasteful number, since it uses less digits than its factorization.

3658890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121973.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 3658890 is about 1912.8225218248. The cubic root of 3658890 is about 154.0930735514.

The spelling of 3658890 in words is "three million, six hundred fifty-eight thousand, eight hundred ninety".