3891295 has 8 divisors (see below), whose sum is σ = 4915440. Its totient is φ = 2949120.

The previous prime is 3891287. The next prime is 3891323. The reversal of 3891295 is 5921983.

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

It is not a de Polignac number, because 3891295 - 2³ = 3891287 is a prime.

3891295 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20386 + ... + 20575.

It is an arithmetic number, because the mean of its divisors is an integer number (614430).

Almost surely, 2^3891295 is an apocalyptic number.

3891295 is a deficient number, since it is larger than the sum of its proper divisors (1024145).

3891295 is a wasteful number, since it uses less digits than its factorization.

3891295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40985.

The product of its digits is 19440, while the sum is 37.

The square root of 3891295 is about 1972.6365605453. The cubic root of 3891295 is about 157.2888915981.

It can be divided in two parts, 3891 and 295, that added together give a triangular number (4186 = T₉₁).

The spelling of 3891295 in words is "three million, eight hundred ninety-one thousand, two hundred ninety-five".