3863155 has 4 divisors (see below), whose sum is σ = 4635792. Its totient is φ = 3090520.

The previous prime is 3863107. The next prime is 3863173. The reversal of 3863155 is 5513683.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3863155 - 2¹⁷ = 3732083 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386311 + ... + 386320.

It is an arithmetic number, because the mean of its divisors is an integer number (1158948).

Almost surely, 2^3863155 is an apocalyptic number.

3863155 is a deficient number, since it is larger than the sum of its proper divisors (772637).

3863155 is an equidigital number, since it uses as much as digits as its factorization.

3863155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772636.

The product of its digits is 10800, while the sum is 31.

The square root of 3863155 is about 1965.4910327956. The cubic root of 3863155 is about 156.9088277500.

The spelling of 3863155 in words is "three million, eight hundred sixty-three thousand, one hundred fifty-five".