3961033919 has 4 divisors (see below), whose sum is σ = 3961271496. Its totient is φ = 3960796344.

The previous prime is 3961033913. The next prime is 3961033931. The reversal of 3961033919 is 9193301693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9193301693 = 83 ⋅110762671.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3961033919 is a prime.

It is a super-2 number, since 2×3961033919² = 31379579414936997122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3961033919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961033913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91724 + ... + 127809.

It is an arithmetic number, because the mean of its divisors is an integer number (990317874).

Almost surely, 2^3961033919 is an apocalyptic number.

3961033919 is a deficient number, since it is larger than the sum of its proper divisors (237577).

3961033919 is a wasteful number, since it uses less digits than its factorization.

3961033919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237576.

The product of its (nonzero) digits is 118098, while the sum is 44.

The square root of 3961033919 is about 62936.7453797859. The cubic root of 3961033919 is about 1582.2296565228.

The spelling of 3961033919 in words is "three billion, nine hundred sixty-one million, thirty-three thousand, nine hundred nineteen".