3889465 has 8 divisors (see below), whose sum is σ = 4781448. Its totient is φ = 3035520.

The previous prime is 3889453. The next prime is 3889489. The reversal of 3889465 is 5649883.

3889465 = 176² + 177² + ... + 257².

It can be written as a sum of positive squares in 4 ways, for example, as 4624 + 3884841 = 68^2 + 1971^2 .

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

It is not a de Polignac number, because 3889465 - 2⁷ = 3889337 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 8⁵ + 8⁵ + 9⁴ + 4⁹ + 6⁵ + 5⁹ .

It is a Duffinian number.

3889465 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9282 + ... + 9691.

It is an arithmetic number, because the mean of its divisors is an integer number (597681).

Almost surely, 2^3889465 is an apocalyptic number.

It is an amenable number.

3889465 is a deficient number, since it is larger than the sum of its proper divisors (891983).

3889465 is a wasteful number, since it uses less digits than its factorization.

3889465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19019.

The product of its digits is 207360, while the sum is 43.

The square root of 3889465 is about 1972.1726597841. The cubic root of 3889465 is about 157.2642311012.

The spelling of 3889465 in words is "three million, eight hundred eighty-nine thousand, four hundred sixty-five".