3880815 has 8 divisors (see below), whose sum is σ = 6209328. Its totient is φ = 2069760.

The previous prime is 3880801. The next prime is 3880817. The reversal of 3880815 is 5180883.

3880815 = 879² + 880² + ... + 883².

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

It is not a de Polignac number, because 3880815 - 2¹¹ = 3878767 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3880817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129346 + ... + 129375.

It is an arithmetic number, because the mean of its divisors is an integer number (776166).

Almost surely, 2^3880815 is an apocalyptic number.

3880815 is a deficient number, since it is larger than the sum of its proper divisors (2328513).

3880815 is a wasteful number, since it uses less digits than its factorization.

3880815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258729.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 3880815 is about 1969.9784262778. The cubic root of 3880815 is about 157.1475616459.

The spelling of 3880815 in words is "three million, eight hundred eighty thousand, eight hundred fifteen".