3870265 has 12 divisors (see below), whose sum is σ = 5402916. Its totient is φ = 2653728.

The previous prime is 3870259. The next prime is 3870283. The reversal of 3870265 is 5620783.

It can be written as a sum of positive squares in 2 ways, for example, as 2119936 + 1750329 = 1456^2 + 1323^2 .

It is not a de Polignac number, because 3870265 - 2⁹ = 3869753 is a prime.

It is a Duffinian number.

3870265 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7654 + ... + 8143.

It is an arithmetic number, because the mean of its divisors is an integer number (450243).

Almost surely, 2^3870265 is an apocalyptic number.

3870265 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3870265 is a deficient number, since it is larger than the sum of its proper divisors (1532651).

3870265 is a wasteful number, since it uses less digits than its factorization.

3870265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816 (or 15809 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 3870265 is about 1967.2989096729. The cubic root of 3870265 is about 157.0050304689.

The spelling of 3870265 in words is "three million, eight hundred seventy thousand, two hundred sixty-five".