3896815 has 8 divisors (see below), whose sum is σ = 5035968. Its totient is φ = 2877600.

The previous prime is 3896807. The next prime is 3896819. The reversal of 3896815 is 5186983.

It is a happy number.

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

It is not a de Polignac number, because 3896815 - 2³ = 3896807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3896819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29911 + ... + 30040.

It is an arithmetic number, because the mean of its divisors is an integer number (629496).

Almost surely, 2^3896815 is an apocalyptic number.

3896815 is a deficient number, since it is larger than the sum of its proper divisors (1139153).

3896815 is a wasteful number, since it uses less digits than its factorization.

3896815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59969.

The product of its digits is 51840, while the sum is 40.

The square root of 3896815 is about 1974.0352073861. The cubic root of 3896815 is about 157.3632305572.

It can be divided in two parts, 38968 and 15, that added together give a palindrome (38983).

The spelling of 3896815 in words is "three million, eight hundred ninety-six thousand, eight hundred fifteen".