3977895 has 8 divisors (see below), whose sum is σ = 6364656. Its totient is φ = 2121536.

The previous prime is 3977893. The next prime is 3977903. The reversal of 3977895 is 5987793.

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

It is a cyclic number.

It is not a de Polignac number, because 3977895 - 2¹ = 3977893 is a prime.

It is a super-3 number, since 3×3977895³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3977891) by changing a digit.

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, 132582 + ... + 132611.

It is an arithmetic number, because the mean of its divisors is an integer number (795582).

Almost surely, 2^3977895 is an apocalyptic number.

3977895 is a deficient number, since it is larger than the sum of its proper divisors (2386761).

3977895 is a wasteful number, since it uses less digits than its factorization.

3977895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265201.

The product of its digits is 476280, while the sum is 48.

The square root of 3977895 is about 1994.4660939710. The cubic root of 3977895 is about 158.4471523867.

The spelling of 3977895 in words is "three million, nine hundred seventy-seven thousand, eight hundred ninety-five".