3862215 has 64 divisors (see below), whose sum is σ = 8094720. Its totient is φ = 1710720.

The previous prime is 3862193. The next prime is 3862219. The reversal of 3862215 is 5122683.

3862215 is a `hidden beast` number, since 38 + 622 + 1 + 5 = 666.

3862215 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 3862215 - 2⁶ = 3862151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3862219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57612 + ... + 57678.

It is an arithmetic number, because the mean of its divisors is an integer number (126480).

Almost surely, 2^3862215 is an apocalyptic number.

3862215 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3862215 is an abundant number, since it is smaller than the sum of its proper divisors (4232505).

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

3862215 is a wasteful number, since it uses less digits than its factorization.

3862215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 143 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 3862215 is about 1965.2518922520. The cubic root of 3862215 is about 156.8961001338.

Adding to 3862215 its reverse (5122683), we get a palindrome (8984898).

It can be divided in two parts, 386 and 2215, that added together give a square (2601 = 51²).

The spelling of 3862215 in words is "three million, eight hundred sixty-two thousand, two hundred fifteen".