3658445 has 8 divisors (see below), whose sum is σ = 5017344. Its totient is φ = 2508624.

The previous prime is 3658439. The next prime is 3658463. The reversal of 3658445 is 5448563.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3658445 - 2⁴ = 3658429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 104527 = 3658445 / (3 + 6 + 5 + 8 + 4 + 4 + 5).

It is a d-powerful number, because it can be written as 3¹³ + 6² + 5⁷ + 8⁵ + 4 + 4³ + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52229 + ... + 52298.

It is an arithmetic number, because the mean of its divisors is an integer number (627168).

Almost surely, 2^3658445 is an apocalyptic number.

3658445 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3658445 is a deficient number, since it is larger than the sum of its proper divisors (1358899).

3658445 is a wasteful number, since it uses less digits than its factorization.

3658445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104539.

The product of its digits is 57600, while the sum is 35.

The square root of 3658445 is about 1912.7061980346. The cubic root of 3658445 is about 154.0868262835.

The spelling of 3658445 in words is "three million, six hundred fifty-eight thousand, four hundred forty-five".