3942095 has 4 divisors (see below), whose sum is σ = 4730520. Its totient is φ = 3153672.

The previous prime is 3942089. The next prime is 3942097. The reversal of 3942095 is 5902493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5902493 = 31 ⋅190403.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3942095 is a prime.

It is a super-2 number, since 2×3942095² = 31080225978050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942097) 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 3 ways as a sum of consecutive naturals, for example, 394205 + ... + 394214.

It is an arithmetic number, because the mean of its divisors is an integer number (1182630).

Almost surely, 2^3942095 is an apocalyptic number.

3942095 is a deficient number, since it is larger than the sum of its proper divisors (788425).

3942095 is an equidigital number, since it uses as much as digits as its factorization.

3942095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788424.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 3942095 is about 1985.4709768717. The cubic root of 3942095 is about 157.9703918242.

The spelling of 3942095 in words is "three million, nine hundred forty-two thousand, ninety-five".